Question

The dimensions of light year is Lx.Find the value of x

Answer 1

Given:

dimension of light-year is Lx

To Find:

find value of x =?

Solution:

We know that the light-years are used to calculate distance, distance travelled by light in one year, thus it dimension would be in [L]

now the dimension formula would remain the same in all physical units,

[L] = [LX]

Thus,  x would be a dimensionless quantity

x = [$M^{0}L^{0}T^{0}$]