Statement-1 : A metallic surface is irradiated by a monochromatic light of frequency (the threshold frequency). The maximum kinetic energy and the stopping potential are and respectively. If the frequency incident on the surface is doubled, both the and are also doubled.Statement-2 : The maximum kinetic energy and the stopping potential of photoelectrons emitted from a surface are linearly dependent on the frequency of incident light.
- AStatement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.
- BStatement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.
- CStatement-1 is false, Statement-2 is true.
- DStatement-1 is true, Statement-2 is false.
Solution & Step-by-step Explanation
Einstein's equation: and .These are linear functions of of the form . Thus Statement 2 is true.However, doubling does not double unless .If , .Thus Statement 1 is false.