McqMate
| Q. |
Light year is a unit of - |
| A. | time |
| B. | distance |
| C. | light |
| D. | intensity of light |
| Answer» B. distance | |
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Explanation: A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. |
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