Question

What is a light year?The distance between the Earth and the Sun is 150×10^6km.Express the distance in light years.​

Answer 1

Explanation:

A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers......

Answer 2

The distance between the Earth and the Sun in light years is $1.58\times 10^{-5}$ light years .

One light year is the distance traveled by light in one year $9.46\times 10^{12}\ km.$

Now ,

Given :

The distance between the Earth and the Sun is $150\times10^6\ km.$

Therefore , their distance in light years ,

$\dfrac{150\times10^6\ km}{9.46\times 10^{12}\ km}=1.58\times 10^{-5}\ light\ years\ .$

Therefore , The distance between the Earth and the Sun in light years is $1.58\times 10^{-5}$ light years .

Hence , this is the required solution .

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