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Question
If the total energy of radiation of frequency 1014 Hz is 6.63 J, Calculate the number of photons in the radiation.
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Solution
Given:
E = 6.63 J, ν = 1014 Hz,
We know, h = 6.63 × 10–34 Js.
To find: Number of photons (n)
Formula: n = `"E"/"hv"`
Calculation:
Using formula,
n = `6.63/(6.63 xx 10^-34 xx 10^14)`
∴ n = 1020
The number of photons emitted in the radiation is 1020.
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