Assertion (A): As work function of a material increases by some mechanism, it requires…
Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter
Assertion (A): As work function of a material increases by some mechanism, it requires greater energy to excite the electrons from its surface.
Reason (R): A plot of stopping potential (Vs) versus frequency \((
u)\) for different materials, has greater slope for metals with greater work functions.
- 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
(C) A is true but R is false.
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