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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

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प्रश्न

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

पर्याय

  • same as its initial value

  • two times its initial value

  • more than two times its initial value

  • less than two times its initial value

MCQ
रिकाम्या जागा भरा

उत्तर

If the frequency of incident light falling on a photosensitive material is doubled, then the kinetic energy of the emitted photoelectron will be more than two times its initial value

Explanation:

E = W0 + Kmax 

⇒ Kmax = E − W0

= hv − W0

⇒ K1 = hv − W0 and

K2 = 2hv − W0

⇒ K2 > 2K1

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The Photoelectric Effect
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2014-2015 (March)

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