An electromagnetic wave has a frequency of 2 10... - SS2 Physics Electromagnetic Waves Question
An electromagnetic wave has a frequency of 2 × 1014 Hz. What is its energy?
A
1.33 × 10-19 J
B
2.66 × 10-19 J
C
4.48 × 10-19 J
D
8.96 × 10-19 J
correct option: c
Explanation: The energy of a photon can be calculated using the formula energy = Planck's constant × frequency. Planck's constant is approximately 6.63 × 10-34 J·s. Substituting the given values, we get energy = (6.63 × 10-34 J·s) × (2 × 1014 Hz) = 4.48 × 10-19 J.
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