engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Physics Relativity Momentum and Energy

The energy of a photon having wavelength 100 Å will be -

1

16 × 10^-24 J

2

23 × 10^-21 J

3

5.3 × 10^-15 J

4

2.0 × 10^-17 J

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