Question

define
- one astronomical unit(AU)
- one light year(ly)
- par sec


also tell the relation between AU, ly, par sec...........


subject- physics
class- 11
Unnecessery answers will b reported ​

Answer 1

one astronomical unit (AU)

Represents the mean roughly distance between the Earth and our sun. An AU is approximately 93 million miles . It’s approximately 8 light-minutes.

93 Million miles = 150 million km

one light Year :-

Light travels distance in one earth year is called a light year

one light year = 6 trillion miles

Parsec :-

There are many astronomical objects outside the solar system . A unit of length used to measure the distance in between them called Parsec .

One parsec = 31 trillion km ( Approx )

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Answer 2

Answer:

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