Question

If the velocity of light is taken as the unit of velocity and a year as the unit of time what must be the unit of length

Answer 1

1Light year = c×1year(i.e.365*24*60*60)

= 9.4607 × 10¹²km (nearly 6 million

million miles)

That is the unit of length u needed.

Answer 2

$\rm\underline\bold{Answer \purple{\huge{\checkmark}}}$

6 million