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A point source of light is used in a pho...

A point source of light is used in a photoelectric effect. If the source is removed farther from the emitted metal, the stopping potential

A

will increase

B

will decrease

C

will remain constant

D

will either increase or decrease

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-MODERN PHYSICS -1-EXERCISE-1
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  3. A point source of light is used in a photoelectric effect. If the sour...

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  4. Cut off potentials for a metal in photoelectric effect for light of wa...

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  5. Photons with energy 5 eV are incident on a cathode C in a photoelectri...

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  6. A proton and an electron are accelerated by same potential difference ...

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  7. An electron with initial kinetic energy of 100 eV is accelerated throu...

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  8. If h is Plank's constant. Find the momentum of a photon of wavelength ...

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  9. When a centimeter thick surface is illuminated with light of wavelengt...

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  10. Out of a photon and an electron, the equation E= pc, is valid for

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  11. If a photocell is illuminated with a radiation of 1240 A, then stoppin...

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  12. Silver has a work function of 4.7 eV. When ultraviolet light of wavele...

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  13. The kinetic energy of an electron is E when the incident wavelength is...

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  14. If lamda0 stands for mid-wavelength in the visible region, the de Brog...

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  15. Light of wavelength lamda strikes a photoelectric surface and electron...

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  16. The angular momentum of an electron in the hydrogen atom is (3h)/(2pi)...

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  17. Consider the electron energy level diagram of H-atom Photons associate...

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  18. If the electron in a hydrogen atom were in the energy level with n 3,...

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  19. In a hydrogen atom, the electron is in n^(th) excited state. It may co...

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  20. Difference between n^(th) and (n+1)^(th) Bohr's radius of H atom is eq...

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