Engineer & Medical

Modern Physics & Optics question bank (Applied Physics & Physical Chemistry)

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Q1.
When light of frequency 2*nu0 (where nu0 is the threshold frequency) is incident on a photosensitive metal surface, the maximum kinetic energy of the emitted photoelectrons is K1. When frequency is increased to 5*nu0, the maximum kinetic energy becomes K2. What is the ratio K1 : K2?

(A)
1 : 4
(B)
1 : 2
(C)
2 : 5
(D)
1 : 5
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