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It was found that certain metals like Zinc, Cadmium, Magnesium, etc. are photosensitive only to…
It was found that certain metals like Zinc, Cadmium, Magnesium, etc. are photosensitive only to ultraviolet light. However, some alkali metals such as Lithium, Sodium, and Potassium, were photosensitive even to visible light. If ultraviolet light of the same frequency and the same intensity is incident on Zinc and Sodium metal, then which of the following quantities may be the same?
- (a)Kinetic energy of the photoelectrons emitted by the two metals.
- (b)Photoelectric current flowing through the two metals.
- (c)Stopping potential.
- (d)The potential energy of the photoelectrons emitted by the two metals.
Answer
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From ISC 2025 Practice Physics, question 12.