The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the…
Physics · JEE Main · NTA Exams — Atoms and Nuclei
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
- ultra-violet region
- infra-red region
- visible region
- X-rays region
Answer
(A) ultra-violet region
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