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[26]
Distance travelled by light in one year is called a ____ year.

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Detailed Solution

Distance travelled by light in one year is called a light year.
A light year is a distance travelled by light in one year. The speed of light is

300, 000 km per second

. The sun is nearest to us and almost

150, 000, 000 kilometres

from the earth. These types of numbers are difficult to read and communicate. Therefore, such large distances are expressed in another unit known as the light year.

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