MHT CET 2026 Physics question
Photoelectric emission is observed from a metallic surface for frequencies and of the incident light rays () If the ratio of maximum value of kinetic energy of the photoelectron emitted in first case to that in second case 3 : K, then the threshold frequency of the metallic surface is
Answer: (D)
Solution
Einstein's equation gives and . Given : , so and . Among the printed
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