MHT CET 2024 Physics question
The threshold frequency of metal is ''. When light of frequency is incident on the metal plate, the maximum velocity of photoelectron is ''. When the frequency of incident radiation is increased to '', the maximum velocity of photoelectrons emitted is ''. The ratio of '' to '' is
Answer: (D)
Solution
By Einstein's photoelectric equation, . For : . For : . Dividing, , so
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