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Q & A: the weight of light

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Most recent answer: 09/12/2020
Q:
can light carry wieght? if yes the how much can a beam of light from a regular torch carry
- sam (age 14)
faridabad haryana,India
A:

Yes, anythng with enrgy has some weight. The light emitted from a 1 W beam fo 1 second of time has 1 J of energy. That's equivalent to 1.1*10-17 kg of mass, which has very, very little weight.

Mike W. 

 


(published on 09/12/2020)

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