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Light Year

A light year ...

Question

A light year is the unit of distance.

A

True

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B

False

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Solution

The correct option is A True
A light-year is a distance travelled by light in one year.
It is used to measure large lengths like astronomical distances.

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Similar questions

The distances between the various celestial objects are usually expressed in the unit of:

(a) kilometres

(b) light minutes

(c) light years

(d) light seconds

Q. Assertion (A): Light year is the unit of time.

Reason (R): Light year is the distance travelled by light in vacuum in one year.

Q. Assertion :A light-year is a distance that light travels with velocity of

3 \times 10^{8}

m s^{- 1}

in one year. Reason: Light year is the unit for measuring time.

Q. Statement 1: Light year is a unit of time.
Statement 2: Distance between two stars can be measured in light years.

Q. Which unit is used to measure distance of light travelled in one year?

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