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Light travels in the form of discrete paritcles called photons. These are measured by a unit called quantum.

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Q: What is light energy measured in?
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What is the light wave measured as?

Energy.


What unit is light energy measured in?

with a theremometer


Is a light year measured in energy produced?

No. A light year is a measure of distance. It is the distance light travels in a year.


What is the unit of light which is scalar qantity?

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What unit that energy is measured in?

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