A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the sun and the earth in terms of the new unit, if light takes 8 min and 20 s to cover this distance?

A new unit of length is chosen such that the speed of light in vacuum

1.	A new unit of length is chosen such that the speed of light in vacuum is unity. What is the distance between the sun and the earth in terms of the new unit, if light takes 8 min and 20 s to cover this distance?
Answer» Solution :Speed of light, C = 1 NEW UNIT per second Time, t = 8 min 20 s = 500 s Distance between the sun and earth `=ct=1xx500=500` new unit of length.