Q21. Choose the correct statement(s)
A. In photo electric effect, the minimum negative potential to

Q: What is the correct answer for CUET UG Physics Q21?

The correct answer is A. A. The minimum negative potential to stop photocurrent is called stopping potential, not saturation potential. Saturation current is observed for sufficiently high positive potential. (Incorrect)B. Maximum kinetic energy of photoelectrons depends on the frequency of incident radiation, not its intensity. Intensity affects the number of photoelectrons. (Incorrect)C. The maximum kinetic energy (K_ma

Q: Q21. Choose the correct statement(s) A. In photo electric effect, the minimum negative potential to the plate A for which photocurrent is zero is called saturation potential B. Maximum kinetic energy…

The correct answer is A. A. The minimum negative potential to stop photocurrent is called stopping potential, not saturation potential. Saturation current is observed for sufficiently high positive potential. (Incorrect)B. Maximum kinetic energy of photoelectrons depends on the frequency of incident radiation, not its intensity. Intensity affects the number of photoelectrons. (Incorrect)C. The maximum kinetic energy (K_ma

Q: What are the options for this CUET UG Physics question?

A. C & D only · B. B and E only · C. D and E only · D. C, D & E only

Question

Q21. Choose the correct statement(s)
A. In photo electric effect, the minimum negative potential to the plate A for which photocurrent is zero is called saturation potential
B. Maximum kinetic energy of photoelectrons is directly proportional to intensity of incident radiation.
C. Kmax = eV₀.
D. Photocurrent becomes zero at stopping potential.
E. For different intensities of light, stopping potential is different.

Choose the correct answer from the options given below:

FirstInTest · Accepted Answer

A. The minimum negative potential to stop photocurrent is called stopping potential, not saturation potential. Saturation current is observed for sufficiently high positive potential. (Incorrect)B. Maximum kinetic energy of photoelectrons depends on the frequency of incident radiation, not its intensity. Intensity affects the number of photoelectrons. (Incorrect)C. The maximum kinetic energy (K_max) of photoelectrons is related to the stopping potential (V₀) by K_max = eV₀. (Correct)D. Photocurrent becomes zero when the applied potential reaches the stopping potential. (Correct)E. Stopping potential depends on the frequency of light and the work function of the material, not on the intensity of light. (Incorrect)Therefore, C and D are correct statements.

Answer

C & D only

Answer

B and E only

Answer

D and E only

Answer

C, D & E only

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