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 light of the above statements, choose the most appropriate answer from the options given below:
- A
Both (A) and (R) are true but (R) is not the correct explanation of (A)
- B
(A) is true but (R) is false
- C
Both (A) and (R) are true and (R) is the correct explanation of (A)
- D
(A) is false but (R) is true