Assertion (A): The minimum negative potential applied to the anode in a photoelectric…
Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter
Assertion (A): The minimum negative potential applied to the anode in a photoelectric experiment at which photoelectric current becomes zero, is called cut-off voltage.
Reason \((R)\) : The threshold frequency for a metal is the minimum frequency of incident radiation below which emission of photoelectrons does not take place.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
(B) Both A and R are true but R is not the correct explanation of A.
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