Published by:
CGP EDU Academic Team
Published on: September 12, 2026
PHYSICS
SINGLE CORRECT MCQ.
The hydrogen atoms are excited to 
, then during de-excitation whatever photons are emitting are being used to eject photoelectrons. What should be maximum work function of metal so that the photon of minimum energy can also eject photoelectron from the metal.
Text Solution
Verified by ExpertsThe correct answer is:
D
PHYSICS
SINGLE CORRECT MCQ.
When e will be de-excited then three types of photons are possible
Minimum energy of any photon 
Hence required maximum work function 
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