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Question

The figure shows stopping potential V0 and frequency υ for two different metallic surfaces A and B. The work function of A, as compared to that of B is:
943937_c9a0d251fbbd4ab4a4eea5f761001852.png
  1. more
  2. less
  3. nothing can be said
  4. equal

A
less
B
equal
C
nothing can be said
D
more
Solution
Verified by Toppr

The correct option is A less
eV=hυϕ
From above equation,
The value of threshold frequency ν0 for A is less than that for B , hence ϕA < ϕB.

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