MHT CET20243 May 2024Evening ShiftPhysicsDual Nature of MatterActual
The frequency of incident light falling on a photosensitive material is doubled, the K.E. of the emitted photoelectrons will be
Options
- Aunchanged.
- Btwo times its initial value.
- Cmore than two times its initial value.
- Dless than two times its initial value.
Correct answer
C. more than two times its initial value.
Step-by-step solution
K E _ = h v- W When frequency is doubled, aligned K E_ & = h v- W & =2 ~h v-2 ~W + W & =2( ~h v- W )+ W & =2 ~K + W aligned The K.E. is more than twice the initial value.