MHT CET 2024 Physics question
A work function of metal 'A' and 'B' are in the ratio 1 : 2. If light of frequency 'f' and '2f' is incident on surface 'A' and 'B' respectively, then the ratio of kinetic energies of emitted photo electrons is
Answer: (B)
Solution
Let the work functions be and . By Einstein's photoelectric equation . For A: . For B: . So
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account