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AP EAMCET2003PhysicsDual Nature of Matter

Consider the two following statements A and B , and identify the correct choice given in the answers : (A) In photovoltaic cells the photoelectric current produced is not proportional to the intensity of incident light. (B) In gas filled photoemissive cells, the velocity of photoelectrons depends on the wavelength of the incident radiation.

Options

  1. Aboth A and B are true
  2. Bboth A and B are false
  3. CA is true but B is false
  4. DA is false but B is true

Correct answer

D. A is false but B is true

Step-by-step solution

In photovoltaic cells the photoelectric current produced is proportional to the intensity of incident light, so statement A is false. The velocity of photoelectrons depends on the maximum kinetic energy of photoelectrons, which depends on the frequency and hence on the wavelength of incident radiation, so statement B is true.

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