For a simple microscope, a lens with a smaller focal length is preferred. It provides greater magnification by allowing the image to form closer to the eye, making objects appear larger and more detailed. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
For a simple microscope, a lens with a smaller focal length is preferred. It provides greater magnification by allowing the image to form closer to the eye, making objects appear larger and more detailed.
Threshold frequency is the minimum frequency of light required to eject electrons from a material’s surface in the photoelectric effect. Below this frequency, no electrons are emitted, regardless of the light's intensity, as the energy is insufficient to overcome the material's work function. For moRead more
Threshold frequency is the minimum frequency of light required to eject electrons from a material’s surface in the photoelectric effect. Below this frequency, no electrons are emitted, regardless of the light’s intensity, as the energy is insufficient to overcome the material’s work function.
A step-up transformer does not violate the law of conservation of energy. It increases voltage but decreases current proportionally, ensuring the input and output power (minus losses) remain equal. The total energy is conserved, as transformers efficiently transfer electrical energy without creatingRead more
A step-up transformer does not violate the law of conservation of energy. It increases voltage but decreases current proportionally, ensuring the input and output power (minus losses) remain equal. The total energy is conserved, as transformers efficiently transfer electrical energy without creating or destroying it.
The angle of minimum deviation produced by a prism depends on the refractive index of the prism material, the prism's angle (apex angle), and the wavelength of light, as dispersion causes different wavelengths to deviate differently. For more visit here: https://www.tiwariacademy.com/ncert-solutionsRead more
The angle of minimum deviation produced by a prism depends on the refractive index of the prism material, the prism’s angle (apex angle), and the wavelength of light, as dispersion causes different wavelengths to deviate differently.
Two independent sources of light cannot be considered coherent because coherence requires a fixed phase relationship between the waves. Independent sources generally emit light with random phases, causing interference patterns to fluctuate over time. This lack of consistent phase correlation means tRead more
Two independent sources of light cannot be considered coherent because coherence requires a fixed phase relationship between the waves. Independent sources generally emit light with random phases, causing interference patterns to fluctuate over time. This lack of consistent phase correlation means they are not spatially or temporally coherent, essential for producing stable interference effects.
Coherent sources of light emit waves with a constant phase difference, the same frequency, and wavelength. These sources maintain a stable phase relationship over time, enabling the formation of clear and stable interference patterns. They are essential for experiments like Young’s double-slit. ForRead more
Coherent sources of light emit waves with a constant phase difference, the same frequency, and wavelength. These sources maintain a stable phase relationship over time, enabling the formation of clear and stable interference patterns. They are essential for experiments like Young’s double-slit.
In Young’s double-slit experiment, fringe width (w) is directly proportional to the distance (D) between the slits and the screen, given by w = λD/d . When D is doubled, the fringe width also doubles. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
In Young’s double-slit experiment, fringe width (w) is directly proportional to the distance (D) between the slits and the screen, given by w = λD/d . When D is doubled, the fringe width also doubles.
The work function of a metallic surface is the minimum energy required to eject an electron from the metal's surface. It depends on the material and is typically measured in electron volts (eV). For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
The work function of a metallic surface is the minimum energy required to eject an electron from the metal’s surface. It depends on the material and is typically measured in electron volts (eV).
Metal B has a lower threshold wavelength because threshold wavelength (λ th ) is inversely proportional to the work function (W) as λ th = hc/W . A higher work function results in a shorter threshold wavelength. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapRead more
Metal B has a lower threshold wavelength because threshold wavelength (λ th ) is inversely proportional to the work function (W) as λ th = hc/W . A higher work function results in a shorter threshold wavelength.
The phenomenon that demonstrates the quantum nature of electromagnetic radiation is the photoelectric effect, where light ejects electrons from a material, showing light's particle-like behavior as discrete photons. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/Read more
The phenomenon that demonstrates the quantum nature of electromagnetic radiation is the photoelectric effect, where light ejects electrons from a material, showing light’s particle-like behavior as discrete photons.
For a simple microscope would you prefer a lens of higher focal length or smaller focal length Why?
For a simple microscope, a lens with a smaller focal length is preferred. It provides greater magnification by allowing the image to form closer to the eye, making objects appear larger and more detailed. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
For a simple microscope, a lens with a smaller focal length is preferred. It provides greater magnification by allowing the image to form closer to the eye, making objects appear larger and more detailed.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
Define the term threshold frequency, in the context of photoelectric emission.
Threshold frequency is the minimum frequency of light required to eject electrons from a material’s surface in the photoelectric effect. Below this frequency, no electrons are emitted, regardless of the light's intensity, as the energy is insufficient to overcome the material's work function. For moRead more
Threshold frequency is the minimum frequency of light required to eject electrons from a material’s surface in the photoelectric effect. Below this frequency, no electrons are emitted, regardless of the light’s intensity, as the energy is insufficient to overcome the material’s work function.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
A step up transformer converts a low input voltage into a high output voltage. Does it violate law of conservation of energy? Explain.
A step-up transformer does not violate the law of conservation of energy. It increases voltage but decreases current proportionally, ensuring the input and output power (minus losses) remain equal. The total energy is conserved, as transformers efficiently transfer electrical energy without creatingRead more
A step-up transformer does not violate the law of conservation of energy. It increases voltage but decreases current proportionally, ensuring the input and output power (minus losses) remain equal. The total energy is conserved, as transformers efficiently transfer electrical energy without creating or destroying it.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-7/
On what factors does the angle of minimum deviation produced by a prism depend?
The angle of minimum deviation produced by a prism depends on the refractive index of the prism material, the prism's angle (apex angle), and the wavelength of light, as dispersion causes different wavelengths to deviate differently. For more visit here: https://www.tiwariacademy.com/ncert-solutionsRead more
The angle of minimum deviation produced by a prism depends on the refractive index of the prism material, the prism’s angle (apex angle), and the wavelength of light, as dispersion causes different wavelengths to deviate differently.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
State the reason, why two independent sources of light cannot be considered as coherent sources.
Two independent sources of light cannot be considered coherent because coherence requires a fixed phase relationship between the waves. Independent sources generally emit light with random phases, causing interference patterns to fluctuate over time. This lack of consistent phase correlation means tRead more
Two independent sources of light cannot be considered coherent because coherence requires a fixed phase relationship between the waves. Independent sources generally emit light with random phases, causing interference patterns to fluctuate over time. This lack of consistent phase correlation means they are not spatially or temporally coherent, essential for producing stable interference effects.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-10/
What are coherent sources of light?
Coherent sources of light emit waves with a constant phase difference, the same frequency, and wavelength. These sources maintain a stable phase relationship over time, enabling the formation of clear and stable interference patterns. They are essential for experiments like Young’s double-slit. ForRead more
Coherent sources of light emit waves with a constant phase difference, the same frequency, and wavelength. These sources maintain a stable phase relationship over time, enabling the formation of clear and stable interference patterns. They are essential for experiments like Young’s double-slit.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-10/
How does the fringe width in Young’s double-slit experiment change when the distance of separation ‘D’ between the slits and screen is doubled?
In Young’s double-slit experiment, fringe width (w) is directly proportional to the distance (D) between the slits and the screen, given by w = λD/d . When D is doubled, the fringe width also doubles. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
In Young’s double-slit experiment, fringe width (w) is directly proportional to the distance (D) between the slits and the screen, given by w = λD/d . When D is doubled, the fringe width also doubles.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
Define work function for a given metallic surface.
The work function of a metallic surface is the minimum energy required to eject an electron from the metal's surface. It depends on the material and is typically measured in electron volts (eV). For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
The work function of a metallic surface is the minimum energy required to eject an electron from the metal’s surface. It depends on the material and is typically measured in electron volts (eV).
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
Two metals A and B have work functions 2eV and 5eV, respectively. Which metal has a lower threshold wavelength?
Metal B has a lower threshold wavelength because threshold wavelength (λ th ) is inversely proportional to the work function (W) as λ th = hc/W . A higher work function results in a shorter threshold wavelength. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapRead more
Metal B has a lower threshold wavelength because threshold wavelength (λ th ) is inversely proportional to the work function (W) as λ th = hc/W . A higher work function results in a shorter threshold wavelength.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/
Name the phenomenon which shows the quantum nature of electromagnetic radiation.
The phenomenon that demonstrates the quantum nature of electromagnetic radiation is the photoelectric effect, where light ejects electrons from a material, showing light's particle-like behavior as discrete photons. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/Read more
The phenomenon that demonstrates the quantum nature of electromagnetic radiation is the photoelectric effect, where light ejects electrons from a material, showing light’s particle-like behavior as discrete photons.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-11/