A photocell is illuminated by a small bright source placed 1 m away. When the same source…
Chemistry · NEET · NTA Exams — Structure of Atom
A photocell is illuminated by a small bright source placed 1 m away. When the same source of light is placed \(\frac{1}{2}\) m away, the number of electrons emitted by photo-cathode would
- Decrease by a factor of 2
- Increase by a factor of 2
- Decrease by a factor of 4
- Increase by factor of 4
Answer
(D) Increase by factor of 4
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