A) \[\left[ {{L}^{-1}} \right]\]
B) \[\left[ {{T}^{-1}} \right]\]
C) [L]
D) [T]
Correct Answer: C
Solution :
As we know that the light year is the distance which is measured in metre. It is distance travelled by light in one year. \[=3\times {{10}^{8}}\times 365\times 24\times 60\times 60\] \[=9.5\times {{10}^{15}}m\] Hence, the dimension of light year is L
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