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The threshold frequency of a metal is ν₀. When light of frequency 3ν₀ falls on the metal, the maximum kinetic energy of the emitted photoel…

2531Medium DSSSB TGT Computer Science 0 replies 1 views

The threshold frequency of a metal is ν₀. When light of frequency 3ν₀ falls on the metal, the maximum kinetic energy of the emitted photoelectrons is

Correct answer: C

Explanation

Einstein's photoelectric equation gives K.E. (max) = hν − hν₀ = h(3ν₀) − hν₀ = 2hν₀.

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