Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Electrons of mass 
with de‐Broglie wavelength 
fall on the target in an 
‐ray tube. The cutoff wavelength 
of the emitted 
‐ray is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Kinetic energy of electrons
So, maximum energy of photon 
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