Dual Nature of Matter and Radiation — JEE Main 2025 · 29 Jan, Morning shift · Q42

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:

Accepted Answer

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

Answer

(A) (A) is false but (R) is true

Answer

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

Answer

(D) (A) is true but (R) is false

Dual Nature of Matter and Radiation: JEE Main 2025 Physics question

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Dual Nature of Matter and Radiation: JEE Main 2025 Physics question

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