Home Physics Electron, Photon, Photoelectric Effect and X-rays Cathode Rays and Positive Rays Kinetic energy of emitted cathode rays is de…
Physics Electron, Photon, Photoelectric Effect and X-rays Cathode Rays and Positive Rays MCQ (Single Correct)

Kinetic energy of emitted cathode rays is dependent on

A
Only voltage and
B
Only work function
C
Both
D
It does not depend upon any physical quantity

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Text Solution

Verified by Experts
The correct answer is:
C

Higher the voltage, higher is the KE. Higher the work function, smaller is the KE.

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