energy of a single photon with.........?

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energy of a single photon with.........?

Excited hydrogen atoms emit light in the ultraviolet at 2.47 × 1015 Hz. What is the energy of a single photon with this frequency?

a.6.11 × 10-17 J
b.1.21 × 10-7 J
c.8.04 × 10-41 J
d.1.64 × 10-18 J
e.2.68 × 10-19 J

2007-05-31 06:51:09 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

c.8.04 × 10-41 J

2007-05-31 07:07:41 · answer #1 · answered by ag_iitkgp 7 · 0⤊ 0⤋

energy of photon is given by
E = hf
E = 6.63*10^-34 * 2.47*10^15
E = 1.64 * 10^-18 J

the answer is d

2007-05-31 07:02:00 · answer #2 · answered by lilmaninbigpants 3 · 0⤊ 0⤋