MHT CET · Physics · Dual Nature of Matter
Light of incident frequency 3 times the threshold frequency is incident on a photosensitive material. If the incident frequency is made \(\left(\frac{1}{4}\right)^{\text {th }}\) and intensity is tripled then the photoelectric current will
- A increase
- B decrease
- C be \(\left(\frac{1}{3}\right)^{\text {rd }}\)
- D be zero
Answer & Solution
Correct Answer
(D) be zero
Step-by-step Solution
Detailed explanation
\(f_{initial} = 3f_0\) \(f_{new} = \frac{1}{4} f_{initial} = \frac{1}{4} (3f_0) = \frac{3}{4} f_0\)
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