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Question

Light year is a unit of .


Your Answer
A
time
Your Answer
B
speed
Correct Answer
C
distance
Your Answer
D
light intensity

Solution

The correct option is C distance
One light year is defined as the distance that light travels in one Earth year in space. So, it expresses length, and hence, is a unit of distance.
1 light year (ly)9.5×1015 m

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