Physics - Modern Physics Question with Solution | TestHub
PhysicsModern PhysicsPhotoelectric effectEasy2 minPYQ_2020
PhysicsEasysingle choice
The variation of stopping potential for metals A, B, and D with frequency of
incident radiation is as shown in the figure. For which metal, stopping potential is
higher for lower values of threshold frequency ?
[The frequency of incident radiation, ' is same.]
Options:
Answer:
C
Solution:
(B) The electrons will have greater kinetic energy for the metal which have smaller threshold frequency (and hence work function). Hence stopping potential will be higher for them. Hence metal A will have higher stopping potential.
Stream:MHT_CETSubject:PhysicsTopic:Modern PhysicsSubtopic:Photoelectric effect
⏱ 2mℹ️ Source: PYQ_2020
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