HSC Science (General) 12th Board ExamMaharashtra State Board
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Solution - If the Frequency of Incident Light Falling on a Photosensitive Material is Doubled, Then the Kinetic Energy of the Emitted Photoelectron Will‘Be - HSC Science (General) 12th Board Exam - Physics

ConceptK.E.(Kinetic Energy) and P.E.(Potential Energy) in S.H.M.

Question

If the frequency of incident light falling on a photosensitive material is doubled, then the kinetic energy of the emitted photoelectron will‘be........................................

1. same as its initial value
2. two times its initial value
3. more than two times its initial value
4. less than two times its initial value

Solution

(c) more than two times its initial value

Since the frequency is double, the value of E is also double.

K.E. = E - Φ

∴ K.E.1 = E - Φ                              ............(i)

K.E.2 = 2E - Φ                             ..............(ii)

From (i) and (ii), we get

K.E.2 > K.E.1

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Solution for question: If the Frequency of Incident Light Falling on a Photosensitive Material is Doubled, Then the Kinetic Energy of the Emitted Photoelectron Will‘Be concept: null - K.E.(Kinetic Energy) and P.E.(Potential Energy) in S.H.M.. For the courses HSC Science (General) , HSC Science (Electronics), HSC Science (Computer Science)
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