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Indian Navy AA (Artificer Apprentice) Dual Nature of Radiation and Matter — practice questions

Explore 1 free Dual Nature of Radiation and Matter questions in Indian Navy AA (Artificer Apprentice) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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In photoelectric effect, intensity of light affects:Read the answer and worked solution →

Worked practice questions

In photoelectric effect, intensity of light affects:

  1. Threshold frequency
  2. Maximum KE of photoelectrons
  3. Work function
  4. NUMBER of photoelectrons emitted per second
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Correct answer: D. NUMBER of photoelectrons emitted per second

Higher intensity = more photons per second = more photoelectrons emitted per second. But max KE of each electron is determined only by photon frequency (KE_max = hν - φ), NOT intensity. This was inexplicable classically.

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