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The anode plate in an experiment on phot...

The anode plate in an experiment on photoelectric effect is kept vertically above the cathode plate. Light source is put on and a saturation photocurrent is recorded. An electric field is switched on which has vertically downward direction

A

The photocurrent will increase

B

The kinetic energy of the electrons will increase

C

The stopping potential will decrease

D

The threshold wavelength will increase

Text Solution

Verified by Experts

The correct Answer is:
B
The electrons will get accelerated in the field. Hence, kinetic energy will increase.
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RESONANCE ENGLISH-ATOMIC PHYSICS-Exercise ( Part II : Only one one correct type)
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  2. When a metalic surface is illuminated with light of wavelength lambda,...

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  3. The anode plate in an experiment on photoelectric effect is kept verti...

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  4. The maximum kinetic energy of photoelectrons emitted from a surface wh...

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  5. A photon of light enters a block of glass after travelling through vac...

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  6. We may state that the energy E of a photon of frequency nu is E =hnu, ...

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  7. The de- Broglie wavelength of an electron moving with a velocity 1.5xx...

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  8. A partical of mass M at rest decays into two Particles of masses m1 ...

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  9. Let p and E denote the linear momentum and the energy of photon. For a...

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  10. The de-Broglie wavelength of a neutron corresponding to root mean squa...

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  11. The wavelength lambda of de Broglie waves associated with an electron ...

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  12. The orbital speed of the electron in the ground state of hydrogen is v...

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  13. The total energy of an electron in the first excited state of hydrogen...

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  14. In above Q., the potential energy of the electron is:

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  15. If a(0) is the Bohr radius, the radius of then n=2 electronic orbit in...

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  16. Ionisation energy of a hydrogen-like ion A is greater than that of ano...

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  17. Which energy state of doubly ionized lithium Li^(++) has the same ener...

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  18. In Bohr's model of hydrogen atom a(0) is the radius of the ground stat...

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