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15/08/2021 12:31 pm
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Excited hydrogen atom emits light in the ultraviolet region at 2.47 × 1015 Hz. With this frequency, the energy of a single photon is:
(h = 6.63 × 10–34 Js)
(a) 8.041 × 10–40 J
(b) 2.680 × 10–19 J
(c) 1.640 × 10–18 J
(d) 6.111 × 10–17 J
1 Answer
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15/08/2021 12:35 pm
(c) 1.640 × 10–18 J
Explanation:
E = hv
= 6.63 x 10–34 x 2.47 x 1015
= 1.640 x 10–18 J