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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
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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
संबंधित प्रश्न
What is the photoelectric effect?
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As the intensity of incident light increases ______
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The stopping potential in the context of photoelectric effect depends on the following property of incident electromagnetic radiation ______.
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(h = 6.63 × 10-34 Js, c = 3 × 108 ms-1)
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The following graphs show the variation of stopping potential corresponding to the frequency of incident radiation (ν) for a given metal. The correct variation is shown in graph [ν0 = threshold frequency].
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(A) |
(B) |
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(C) |
(D) |
The photoelectric threshold for a certain metal surface is 3600 Å. If the metal surface is irradiated by a wavelength of 1100 Å, then kinetic energy of the emitted photoelectrons is ______.
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