Q72 / 100 · BITSAT 2024 (Memory Based Paper 1) · Physics

When light is incident on a metal surface the maximum kinetic energy of emitted electrons

A
vary with intensity of light
Correct answer
B
vary with frequency of light
C
vary with speed of light
D
vary irregularly

Solution

Max. K.E. $=h v-W_0$; so Max. K.E. $\propto v$

Hence, the correct answer is option: 'B'.

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