Photoelectric EffectMedium
Question
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 5 V. The incident radiation lies in
Options
A.X-ray region
B.ultra-violet region
C.infra-red region
D.visible region
Solution
Max. energy of incident light is 6.2+5 = 11.2
min
Ultraviolet region
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