JEE Main 2025 Physics question

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:

• (1)(A) is false but (R) is true.
• (2)(A) is true but (R) is false.
• (3)Both (A) and (R) are true and (R) is the correct explanation of (A).
• (4)Both (A) and (R) are true but (R) is not the correct explanation of (A).Correct