Verified Solution • 2025–26 Session moderate

QJEEM21Phdfe9: JEE Main 2021 Physics - Class 12 JEEM21Phdfe9 Solution: In a photoelectric experiment, increasing the intensity of…

In a photoelectric experiment, increasing the intensity of incident light :

Multiple Choice Options

  • A increases the number of photons incident and also increases the K.E. of the ejected electrons
  • B increases the frequency of photons incident and increases the K.E. of the ejected electrons
  • C increases the frequency of photons incident and the K.E. of the ejected electrons remains unchanged
  • D increases the number of photons incident and the K.E. of the ejected electrons remains unchanged

Step-by-Step Verified Solution

→\to Increasing intensity means number of incident photons are increased.

→\to Kinetic energy of ejected electrons depend on the frequency of incident photons, not the intensity.

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