The phenomenon of light returning after hitting a smooth surface is called reflection. This occurs when light rays bounce off a surface at an angle equal to the angle at which they hit the surface, obeying the law of reflection.
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The velocity of light is maximum in vacuum. In vacuum, light travels at its maximum speed, which is approximately 299,792,458 meters per second (or about 186,282 miles per second).
A solar eclipse occurs when the Moon passes between the Sun and Earth, blocking all or part of the Sun’s light from reaching Earth. This alignment causes the Moon’s shadow to fall on Earth’s surface, creating a temporary darkening of ...
Light is made up of small particles, which are called “Photon”. Photons are fundamental particles of light that exhibit both wave-like and particle-like properties. They have no mass and carry electromagnetic radiation.
Echo sounding is used to measure the depth of the sea. It involves sending sound waves (usually low-frequency) into the water and measuring the time it takes for the sound waves to bounce off the seafloor and return. By calculating ...
The special sound heard as a jug fills with water is due to resonance. As water fills the jug, the air column’s length inside changes, altering its natural frequency. When the air column’s frequency matches the filling water’s sound waves, ...
If the same note is played on sitar and flute, the sound produced by them can be distinguished due to the difference in sound quality. Each instrument has a unique timbre or quality of sound caused by the overtones and ...
Sound or noise pollution is measured in decibels, a unit that quantifies the intensity of sound. It provides a logarithmic scale to describe sound levels perceived by the human ear.
The relation between resonance time and volume of a hall has been propounded by Sabine. Sabine’s formula calculates the reverberation time in a room based on its volume and the absorption coefficient of its surfaces. It is crucial in architectural ...
The effect of sound in the human ear lasts for approximately 1/10 second. This duration is known as the persistence of hearing or auditory persistence. It represents the time during which the auditory nerves continue to transmit signals to the ...