The Doppler effect is related to sound (Option A). It explains the change in frequency of waves, whether sound or electromagnetic, due to relative motion between the source emitting the waves and the observer. When a sound source moves towards an observer, the sound waves are compressed, resulting iRead more
The Doppler effect is related to sound (Option A). It explains the change in frequency of waves, whether sound or electromagnetic, due to relative motion between the source emitting the waves and the observer. When a sound source moves towards an observer, the sound waves are compressed, resulting in a higher frequency or pitch (called blue shift). Conversely, when the source moves away, the waves stretch, leading to a lower frequency or pitch (red shift). This phenomenon applies not only to sound waves but also to light waves and other types of waves. Understanding the Doppler effect is crucial in various fields, such as astronomy (to determine the motion of stars and galaxies), meteorology (to study weather patterns using Doppler radar), medicine (for Doppler ultrasound to measure blood flow), and in everyday applications like police radar for measuring vehicle speeds. It illustrates how motion affects wave properties and how these changes are perceived by observers, influencing our understanding of the universe and technological advancements.
The fluctuations in the frequency of a sound source are called the Doppler effect (Option B). The Doppler effect is a change in the frequency of a wave in relation to an observer who is moving relative to the wave source. This effect is most commonly experienced with sound waves. When a sound sourceRead more
The fluctuations in the frequency of a sound source are called the Doppler effect (Option B). The Doppler effect is a change in the frequency of a wave in relation to an observer who is moving relative to the wave source. This effect is most commonly experienced with sound waves. When a sound source moves toward an observer, the sound waves are compressed, resulting in a higher frequency or pitch (an effect called a blue shift). Conversely, when the sound source moves away from the observer, the sound waves are stretched, leading to a lower frequency or pitch (an effect called a red shift). This principle not only applies to sound waves but also to electromagnetic waves, such as light. The Doppler effect has practical applications in various fields, including astronomy, radar and sonar technology, medical imaging (Doppler ultrasound), and even in everyday phenomena like the changing pitch of a passing siren. Understanding this effect is essential in analyzing the motion and speed of objects relative to an observer.
When we sit inside a room and hear people talking without seeing them, the reason is diffraction (Option D). Diffraction is the bending of sound waves around obstacles and the spreading out of waves when they pass through small openings or gaps. In an enclosed space like a room, sound waves producedRead more
When we sit inside a room and hear people talking without seeing them, the reason is diffraction (Option D). Diffraction is the bending of sound waves around obstacles and the spreading out of waves when they pass through small openings or gaps. In an enclosed space like a room, sound waves produced by talking people can bend around corners, furniture, and other obstacles. This property of sound waves enables them to reach our ears even when the sound source is not directly visible to us. The wavelength of sound waves is relatively long compared to the size of most obstacles in a room, which enhances their ability to diffract and propagate through the space. As a result, we can clearly hear conversations and other sounds occurring within the same room, regardless of our position relative to the sound source. This characteristic of sound waves is crucial for effective communication and the design of acoustic spaces.
Silent zones where ships do not hear the sirens from lighthouses are created due to interference (Option B). Specifically, these silent areas are a result of destructive interference. Sound waves emitted by the sirens can travel through the air and water, and when these waves intersect, they can eitRead more
Silent zones where ships do not hear the sirens from lighthouses are created due to interference (Option B). Specifically, these silent areas are a result of destructive interference. Sound waves emitted by the sirens can travel through the air and water, and when these waves intersect, they can either reinforce each other (constructive interference) or cancel each other out (destructive interference). Destructive interference occurs when the crest of one sound wave aligns with the trough of another, effectively reducing the overall sound intensity to zero or near zero. This cancellation creates regions where the siren’s sound is not heard, known as silence zones. The occurrence of these zones depends on various factors, including the frequency of the sound waves, the distance between the sirens, and the environmental conditions affecting sound wave propagation. Understanding interference is crucial for designing effective auditory signaling systems to ensure that ships can reliably receive signals without encountering silent areas.
When two loudspeakers are played simultaneously and a listener sitting at a particular place cannot hear their sound, the reason is interference (Option B). This occurs due to the phenomenon known as destructive interference. When sound waves from the two loudspeakers meet at a point where they areRead more
When two loudspeakers are played simultaneously and a listener sitting at a particular place cannot hear their sound, the reason is interference (Option B). This occurs due to the phenomenon known as destructive interference. When sound waves from the two loudspeakers meet at a point where they are out of phase, meaning the crest of one wave coincides with the trough of another, they effectively cancel each other out. This results in a reduction or complete elimination of sound at that specific location. Destructive interference happens because sound waves are coherent and can add together or subtract from one another depending on their phase relationship. At points of destructive interference, the sound intensity drops significantly, creating zones of silence or reduced sound that the listener experiences. This principle of interference is key in understanding various acoustic phenomena and is widely studied in the field of wave mechanics.
Tuning a radio station is an example of resonance (Option B). Radios use tuning circuits made of inductors and capacitors that can be adjusted to resonate at specific frequencies. When you turn the tuning knob on a radio, you are modifying the circuit's resonant frequency to match the frequency of tRead more
Tuning a radio station is an example of resonance (Option B). Radios use tuning circuits made of inductors and capacitors that can be adjusted to resonate at specific frequencies. When you turn the tuning knob on a radio, you are modifying the circuit’s resonant frequency to match the frequency of the desired radio station’s broadcast signal. Resonance occurs when the circuit’s natural frequency aligns with the incoming signal’s frequency, resulting in maximum energy transfer. This amplification allows the radio to isolate and enhance the selected station’s signal, providing clear audio reception while filtering out other signals. The ability to adjust the resonant frequency is crucial for selectively tuning into different radio stations, each broadcasting at its own distinct frequency. This principle of resonance is fundamental in radio technology, making it possible to listen to a variety of broadcasts by simply adjusting the tuning mechanism.
The special sound we hear as a jug gets filled with water is due to resonance (Option C). As water fills the jug, the volume of the air column inside the jug decreases, continuously changing its natural frequency. This varying air column length means that at different points during the filling proceRead more
The special sound we hear as a jug gets filled with water is due to resonance (Option C). As water fills the jug, the volume of the air column inside the jug decreases, continuously changing its natural frequency. This varying air column length means that at different points during the filling process, the natural frequency of the air column will momentarily match the frequency of the sound waves created by the filling water. When this happens, resonance occurs, which amplifies the sound waves. This amplified sound is what we hear as the distinctive noise associated with the filling jug. The phenomenon of resonance here results in the sound waves being significantly enhanced at specific frequencies, creating a noticeable change in pitch and volume as the jug continues to fill. This principle of resonance demonstrates how sound can interact with physical structures to produce distinct auditory effects.
If Tansen's singing could break window panes or glass glasses, it would be due to resonance (Option C). Resonance occurs when an object is exposed to sound waves that match its natural frequency. In this case, the glass has a specific natural frequency at which it vibrates. When Tansen sang at a pitRead more
If Tansen’s singing could break window panes or glass glasses, it would be due to resonance (Option C). Resonance occurs when an object is exposed to sound waves that match its natural frequency. In this case, the glass has a specific natural frequency at which it vibrates. When Tansen sang at a pitch that matched this frequency, the sound waves would cause the glass to vibrate at its natural resonant frequency. This would result in the vibrations being amplified significantly. If the amplitude of these vibrations became too great, the structural integrity of the glass could be compromised, leading to it shattering. This phenomenon is a powerful demonstration of resonance, where even small initial vibrations can build up to destructive levels if the driving frequency matches the natural frequency of the material.
We listen to programs of different stations by turning the knob of the radio due to resonance (Option A). Radios operate by tuning circuits, which consist of inductors and capacitors that can be adjusted to resonate at specific frequencies. When we turn the knob, we are changing the inductance or caRead more
We listen to programs of different stations by turning the knob of the radio due to resonance (Option A). Radios operate by tuning circuits, which consist of inductors and capacitors that can be adjusted to resonate at specific frequencies. When we turn the knob, we are changing the inductance or capacitance, thereby altering the resonant frequency of the circuit. This adjustment allows the radio to select and amplify the electromagnetic waves from a particular station’s broadcast frequency while ignoring others. Resonance occurs when the circuit’s natural frequency matches the frequency of the incoming radio signal, resulting in maximum energy transfer and a clear signal reception. This principle is fundamental in radio technology, as it enables the selective tuning to different broadcast signals, ensuring that we can listen to various stations by simply adjusting the tuning knob to match the desired frequency.
When an army crosses a bridge, soldiers are instructed not to march in step to avoid the danger of the bridge collapsing due to resonance; option [B]. Resonance occurs when the frequency of the soldiers' synchronized steps matches the bridge's natural frequency, causing the vibrations to amplify sigRead more
When an army crosses a bridge, soldiers are instructed not to march in step to avoid the danger of the bridge collapsing due to resonance; option [B]. Resonance occurs when the frequency of the soldiers’ synchronized steps matches the bridge’s natural frequency, causing the vibrations to amplify significantly. This can lead to large oscillations and potentially catastrophic structural failure of the bridge. Marching in step, especially if the bridge is long or has a specific structural design, can inadvertently set up these dangerous oscillations. This precaution is crucial because historical incidents have demonstrated that even well-built bridges can succumb to resonant vibrations under synchronized forces. By breaking step, the soldiers create irregular, non-periodic forces on the bridge, which minimizes the risk of resonance and ensures the structural integrity of the bridge remains intact during the crossing.
Doppler effect is related to
The Doppler effect is related to sound (Option A). It explains the change in frequency of waves, whether sound or electromagnetic, due to relative motion between the source emitting the waves and the observer. When a sound source moves towards an observer, the sound waves are compressed, resulting iRead more
The Doppler effect is related to sound (Option A). It explains the change in frequency of waves, whether sound or electromagnetic, due to relative motion between the source emitting the waves and the observer. When a sound source moves towards an observer, the sound waves are compressed, resulting in a higher frequency or pitch (called blue shift). Conversely, when the source moves away, the waves stretch, leading to a lower frequency or pitch (red shift). This phenomenon applies not only to sound waves but also to light waves and other types of waves. Understanding the Doppler effect is crucial in various fields, such as astronomy (to determine the motion of stars and galaxies), meteorology (to study weather patterns using Doppler radar), medicine (for Doppler ultrasound to measure blood flow), and in everyday applications like police radar for measuring vehicle speeds. It illustrates how motion affects wave properties and how these changes are perceived by observers, influencing our understanding of the universe and technological advancements.
See lessThe fluctuations in the frequency of a sound source are called
The fluctuations in the frequency of a sound source are called the Doppler effect (Option B). The Doppler effect is a change in the frequency of a wave in relation to an observer who is moving relative to the wave source. This effect is most commonly experienced with sound waves. When a sound sourceRead more
The fluctuations in the frequency of a sound source are called the Doppler effect (Option B). The Doppler effect is a change in the frequency of a wave in relation to an observer who is moving relative to the wave source. This effect is most commonly experienced with sound waves. When a sound source moves toward an observer, the sound waves are compressed, resulting in a higher frequency or pitch (an effect called a blue shift). Conversely, when the sound source moves away from the observer, the sound waves are stretched, leading to a lower frequency or pitch (an effect called a red shift). This principle not only applies to sound waves but also to electromagnetic waves, such as light. The Doppler effect has practical applications in various fields, including astronomy, radar and sonar technology, medical imaging (Doppler ultrasound), and even in everyday phenomena like the changing pitch of a passing siren. Understanding this effect is essential in analyzing the motion and speed of objects relative to an observer.
See lessWhen we sit inside a room, although we do not see the people talking in the same room, we definitely hear their voices. The reason for this is
When we sit inside a room and hear people talking without seeing them, the reason is diffraction (Option D). Diffraction is the bending of sound waves around obstacles and the spreading out of waves when they pass through small openings or gaps. In an enclosed space like a room, sound waves producedRead more
When we sit inside a room and hear people talking without seeing them, the reason is diffraction (Option D). Diffraction is the bending of sound waves around obstacles and the spreading out of waves when they pass through small openings or gaps. In an enclosed space like a room, sound waves produced by talking people can bend around corners, furniture, and other obstacles. This property of sound waves enables them to reach our ears even when the sound source is not directly visible to us. The wavelength of sound waves is relatively long compared to the size of most obstacles in a room, which enhances their ability to diffract and propagate through the space. As a result, we can clearly hear conversations and other sounds occurring within the same room, regardless of our position relative to the sound source. This characteristic of sound waves is crucial for effective communication and the design of acoustic spaces.
See lessHigh light houses are built at various places in the sea from where signals are sent to the ships by sounding big sirens. Sometimes ships reach the silence zone, where the sound of sirens is not heard. Due to which property of sound waves are these silent areas created?
Silent zones where ships do not hear the sirens from lighthouses are created due to interference (Option B). Specifically, these silent areas are a result of destructive interference. Sound waves emitted by the sirens can travel through the air and water, and when these waves intersect, they can eitRead more
Silent zones where ships do not hear the sirens from lighthouses are created due to interference (Option B). Specifically, these silent areas are a result of destructive interference. Sound waves emitted by the sirens can travel through the air and water, and when these waves intersect, they can either reinforce each other (constructive interference) or cancel each other out (destructive interference). Destructive interference occurs when the crest of one sound wave aligns with the trough of another, effectively reducing the overall sound intensity to zero or near zero. This cancellation creates regions where the siren’s sound is not heard, known as silence zones. The occurrence of these zones depends on various factors, including the frequency of the sound waves, the distance between the sirens, and the environmental conditions affecting sound wave propagation. Understanding interference is crucial for designing effective auditory signaling systems to ensure that ships can reliably receive signals without encountering silent areas.
See lessWhen two loudspeakers are played simultaneously at a place, then the listener sitting at a particular place cannot hear their sound, the reason for this is
When two loudspeakers are played simultaneously and a listener sitting at a particular place cannot hear their sound, the reason is interference (Option B). This occurs due to the phenomenon known as destructive interference. When sound waves from the two loudspeakers meet at a point where they areRead more
When two loudspeakers are played simultaneously and a listener sitting at a particular place cannot hear their sound, the reason is interference (Option B). This occurs due to the phenomenon known as destructive interference. When sound waves from the two loudspeakers meet at a point where they are out of phase, meaning the crest of one wave coincides with the trough of another, they effectively cancel each other out. This results in a reduction or complete elimination of sound at that specific location. Destructive interference happens because sound waves are coherent and can add together or subtract from one another depending on their phase relationship. At points of destructive interference, the sound intensity drops significantly, creating zones of silence or reduced sound that the listener experiences. This principle of interference is key in understanding various acoustic phenomena and is widely studied in the field of wave mechanics.
See lessTuning station of radio is an example of
Tuning a radio station is an example of resonance (Option B). Radios use tuning circuits made of inductors and capacitors that can be adjusted to resonate at specific frequencies. When you turn the tuning knob on a radio, you are modifying the circuit's resonant frequency to match the frequency of tRead more
Tuning a radio station is an example of resonance (Option B). Radios use tuning circuits made of inductors and capacitors that can be adjusted to resonate at specific frequencies. When you turn the tuning knob on a radio, you are modifying the circuit’s resonant frequency to match the frequency of the desired radio station’s broadcast signal. Resonance occurs when the circuit’s natural frequency aligns with the incoming signal’s frequency, resulting in maximum energy transfer. This amplification allows the radio to isolate and enhance the selected station’s signal, providing clear audio reception while filtering out other signals. The ability to adjust the resonant frequency is crucial for selectively tuning into different radio stations, each broadcasting at its own distinct frequency. This principle of resonance is fundamental in radio technology, making it possible to listen to a variety of broadcasts by simply adjusting the tuning mechanism.
See lessWhen we keep a jug under water to fill it, we hear a special kind of sound as the jug gets filled. Its reason is
The special sound we hear as a jug gets filled with water is due to resonance (Option C). As water fills the jug, the volume of the air column inside the jug decreases, continuously changing its natural frequency. This varying air column length means that at different points during the filling proceRead more
The special sound we hear as a jug gets filled with water is due to resonance (Option C). As water fills the jug, the volume of the air column inside the jug decreases, continuously changing its natural frequency. This varying air column length means that at different points during the filling process, the natural frequency of the air column will momentarily match the frequency of the sound waves created by the filling water. When this happens, resonance occurs, which amplifies the sound waves. This amplified sound is what we hear as the distinctive noise associated with the filling jug. The phenomenon of resonance here results in the sound waves being significantly enhanced at specific frequencies, creating a noticeable change in pitch and volume as the jug continues to fill. This principle of resonance demonstrates how sound can interact with physical structures to produce distinct auditory effects.
See lessIt is said that when Tansen sang, the window panes or glass glasses would break into pieces. If this were possible, what property of sound would cause it?
If Tansen's singing could break window panes or glass glasses, it would be due to resonance (Option C). Resonance occurs when an object is exposed to sound waves that match its natural frequency. In this case, the glass has a specific natural frequency at which it vibrates. When Tansen sang at a pitRead more
If Tansen’s singing could break window panes or glass glasses, it would be due to resonance (Option C). Resonance occurs when an object is exposed to sound waves that match its natural frequency. In this case, the glass has a specific natural frequency at which it vibrates. When Tansen sang at a pitch that matched this frequency, the sound waves would cause the glass to vibrate at its natural resonant frequency. This would result in the vibrations being amplified significantly. If the amplitude of these vibrations became too great, the structural integrity of the glass could be compromised, leading to it shattering. This phenomenon is a powerful demonstration of resonance, where even small initial vibrations can build up to destructive levels if the driving frequency matches the natural frequency of the material.
See lessWe listen to programs of different stations by turning the knob of the radio. This is possible
We listen to programs of different stations by turning the knob of the radio due to resonance (Option A). Radios operate by tuning circuits, which consist of inductors and capacitors that can be adjusted to resonate at specific frequencies. When we turn the knob, we are changing the inductance or caRead more
We listen to programs of different stations by turning the knob of the radio due to resonance (Option A). Radios operate by tuning circuits, which consist of inductors and capacitors that can be adjusted to resonate at specific frequencies. When we turn the knob, we are changing the inductance or capacitance, thereby altering the resonant frequency of the circuit. This adjustment allows the radio to select and amplify the electromagnetic waves from a particular station’s broadcast frequency while ignoring others. Resonance occurs when the circuit’s natural frequency matches the frequency of the incoming radio signal, resulting in maximum energy transfer and a clear signal reception. This principle is fundamental in radio technology, as it enables the selective tuning to different broadcast signals, ensuring that we can listen to various stations by simply adjusting the tuning knob to match the desired frequency.
See lessWhen the army crosses a bridge, the soldiers are instructed not to march in step because
When an army crosses a bridge, soldiers are instructed not to march in step to avoid the danger of the bridge collapsing due to resonance; option [B]. Resonance occurs when the frequency of the soldiers' synchronized steps matches the bridge's natural frequency, causing the vibrations to amplify sigRead more
When an army crosses a bridge, soldiers are instructed not to march in step to avoid the danger of the bridge collapsing due to resonance; option [B]. Resonance occurs when the frequency of the soldiers’ synchronized steps matches the bridge’s natural frequency, causing the vibrations to amplify significantly. This can lead to large oscillations and potentially catastrophic structural failure of the bridge. Marching in step, especially if the bridge is long or has a specific structural design, can inadvertently set up these dangerous oscillations. This precaution is crucial because historical incidents have demonstrated that even well-built bridges can succumb to resonant vibrations under synchronized forces. By breaking step, the soldiers create irregular, non-periodic forces on the bridge, which minimizes the risk of resonance and ensures the structural integrity of the bridge remains intact during the crossing.
See less