McqMate
| Q. |
Photon is the fundamental unit/ quantum of – |
| A. | gravitation |
| B. | electricity |
| C. | magnetism |
| D. | light |
| Answer» D. light | |
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Explanation: A photon is an elementary particle, the quantum of light and all other forms of electromagnetic radiation. The modern photon concept was developed gradually by Albert Einstein. |
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