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Question
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].
|
(A) |
(B) |
|
(C) |
(D) |
Options
(D)
(A)
(B)
(C)
MCQ
Solution
(A)
Explanation:
From Einstein's photoelectric equation,
Kmax = hν - Φ0
⇒ eV0 = hν - hν0
or V0 = `h/e(ν - ν_0)`
As a result, Figure A accurately depicts a graph illustrating the variable stopping potential and frequency.
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The Photoelectric Effect
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