Give the value of one light year.

What is the value of one light year in tera metre?

Define one light year.

What is one light year?

Determine the number of light years in one metre.

Assertion (A) : The distance between two celestial bodies is measured by the unit of light year. Reason (R) : The distance travelled by the light in one year in vacuum is called one light year.

How many Astronomical units are there in one light year? Given Data: 1 Astronomical unit =1.496xx10^(11)m 1 light year =9.46xx10^(15)m

Which of the following is not the unit of time? a) Light year b) Astronomical unit c) Parsec d) all of the above