Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In photoelectric effect, on increasing the intensity of incident light the stopping po

Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason $R$
Assertion A: In photoelectric effect, on increasing the intensity of incident light the stopping potential increases.
Reason R : Increase in intensity of light increases the rate of photoelectrons emitted, provided the frequency of incident light is greater than threshold frequency.
In the light of the above statements, choose the correct answer from the options given below

Options:

Answer:

B

Solution:

$V_{S} = \frac{hv - ϕ}{e}$
so stopping potential doesn't depend on Intensity
$I = \frac{η hv}{A}$
On increasing intensity no. of photons per sec. $n$ increases so the no. of electrons.

TestHub · Accepted Answer

V S ​ = e hv − ϕ ​ so stopping potential doesn't depend on Intensity I = A η hv ​ On increasing intensity no. of photons per sec. n increases so the no. of electrons.

Physics - Modern Physics Question with Solution | TestHub

Options:

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