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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…

Q1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Emission of electrons in photoelectric effect can be suppressed by applying a sufficiently negative electron potential to the photoemissive substance.
Reason (R) : A negative electric potential, which stops the emission of electrons from the surface of a photoemissive substance, varies linearly with frequency of incident radiation.
In the light of the above statements, choose the most appropriate answer from the options given below :

[JEE Main 2025, 29 Jan (Shift 1)]

a

Both ( A) and ( R ) are true and ( R ) is the correct explanation of ( A )

b

(A) is true but (R) is false

c

(A) is false but (R) is true

d

Both (A) and (R) are true but (R) is not the correct explanation of (A)

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