Chemistry JEE Main Full Syllabus Mock Test 75 Question New Syllabus TEST 12 PCM Single Correct MCQ
Published on: August 14, 2026

The variation of stopping potential ( ) as a function of the frequency (v) of the incident light for a metal is shown in figure. The work function of the surface is


A
18.6 eV
B
2.98 eV
C
2.07 eV
D
1.36 eV

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The correct answer is:
C

work function,

Stopping potential will be zero when incident and threshold frequencies are equal

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