The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping p….

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The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping potential for a radiation incident on this surface is 5 V. The incident radiation lies in

Options :-

1. ultraviolet region
2. infrared region
3. visible region
4. X-ray region

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