Question

Name the country in which the following units are used:–
a. Light year.
b. Astronomical unit (AU).
c. a.m.u.
d. Chandrashekhar unit.

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Answer 1

Answer:

A light year is the distance light travels in one year, while an AU, otherwise known as an astronomical unit, is the distance between the Sun and the Earth. A light year is approximately 9,500,000,000,000 km. An AU is 149,600,000 km. As you can probably tell, an AU is much shorter than a light year.

Explanation:

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