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👨🏻‍🏫 學術台其他 - 科學

Savio

2007-01-15 12:54 am

A light beam travels in a vacuum at velocity c (~300000000 m/s).
How much energy does the light beam carry? (pls in terms of c, frequency, amplitude and other necessary factors)
　
Thx for answering~

更新1:

So, if 10 Watts are used to produce 10J/s of light, then what is the frequency and amplitude of the light?

回答 (1)

天同

2007-01-15 2:16 am

✔ 最佳答案

This depends on the power of the light source.
If a source is giving out luminous power of, say 10 Watts, then the light beam it emits will carry an energy of 10 J/s

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