Question:
A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?
A metallic surface ejects electrons. When exposed to green light of intensity I but no photoelectrons are emitted, when exposed to yellow light of intensity 1 it is possible to eject electrons from the same surface by?
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The photoelectric effect depends on the frequency of light, not just the intensity.
Updated On: Jan 12, 2026
- Yellow light of same intensity which is more than I
- Green light of any intensity
- Red light of any intensity
- None of the above
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The Correct Option is A
Solution and Explanation
The photoelectric effect occurs when light of sufficient frequency strikes a metallic surface, causing the emission of electrons. Yellow light has a higher frequency than green light, which is why it can cause the ejection of electrons even at the same intensity.
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