The energy of light of frequency 2 0 x 10 15 Hz - 638 - JAMB Physics 2024 Question
The energy of light of frequency 2.0 x 10(^{15})Hz is (h = 6.63 x 10(^{-34})Js)
A
3.33 x 10\(^{-18}\)J
B
1.33 x 10\(^{-18}\)J
C
1.33 x 10\(^{-19}\)J
D
3.33 x 10\(^{-19}\)J
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Correct Option: B
The energy of a photon can be calculated using the following formula:E = hfWhere:* E is the energy of the photon* h is Planck's constant (6.63 x 10⁻³⁴ Js)* f is the frequency of the light (2.0 x 10¹⁵ Hz)Therefore:E = (6.63 x 10⁻³⁴ Js) * (2.0 x 10¹⁵ Hz)E = 13.26 x 10⁻¹⁹ JE ≈ 1.33 x 10⁻¹⁸ J
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