TS EAMCET · Physics · Dual Nature of Matter
For photoelectric effect which of the following statements are true.
I) The kinetic energies of the photoelectrons do not depend on the frequency of light
II) Photoelectric effect will always occur for highly intense light
III) The maximum kinetic energy of photoelectron does not depend upon the intensity of the light
IV) The escaping electron's kinetic energy is larger for larger frequency
- A I and II only
- B II and III only
- C III and IV only
- D IV and I only
Answer & Solution
Correct Answer
(C) III and IV only
Step-by-step Solution
Detailed explanation
The maximum kinetic energy of the photoelectrons depends on the frequency of incident light and does not depend on the intensity of light. Kmax=hν-ϕ Therefore, statement III and IV are correct and I is incorrect. Photoelectric effect happens when insident radiation ha…
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