SECTION - A The energy of a photon of wavelength 663 {\nm} ...

CBSE Class 12 Physics 2023 Outside Delhi Set 3 Paper

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Question : 1 of 13

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SECTION - A

The energy of a photon of wavelength 663‌nm is

6.64×10−20J
5.18×10−19J
3.0×10−19J
2.0×10−20J

Solution: 👈: Video Solution

E‌=‌

hc

λ

‌=‌

6.6×10−34×3×108

663×10−9

‌=2.98×10−19J
‌‌≈3.0×10−19J

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