HomeTestsSearchRankProfile
mediumMCQFIITJEE AIEEE 2011 (Set Q)2026Physics
1 mark

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.

  1. A
    Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.
  2. B
    Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.
  3. C
    Statement-1 is false, Statement-2 is true.
  4. D
    Statement-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.

Practice this question

Try it yourself before checking the explanation above.

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.
A
Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.
B
Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.
C
Statement-1 is false, Statement-2 is true.
D
Statement-1 is true, Statement-2 is false.

Share This Question

Related Questions

Ready for a Full Test?

Practice with timed mock tests and track your performance across Physics.

Discussion