Question

The speed of light in vacuum is 3×10 ki power 8 m/s . Sunlight takes about 8 min to reach the earth.express distance of sun from the earth in standars form ?

Answer 1

this is your answer . Hope it helps

Answer 2

The distance of sun from the earth is $d=1.44\times 10^{8}\ km$.

Explanation:

Given that,

The speed of light in vacuum, $c=3\times 10^8\ m/s$

Time taken by the sunlight to reach the Earth, $t=8\ min=480\ s$

Let d is the distance of sun from the earth. The speed of an object is given by total distance divided by time taken.

$c=\dfrac{d}{t}$

d is the distance

$d=c\times t$

$d=3\times 10^8\ m/s\times 480\ s$

$d=1.44\times 10^{11}\ m$

or

$d=1.44\times 10^{8}\ km$

So, the distance of sun from the earth is $d=1.44\times 10^{8}\ km$. Hence, this is the required solution.

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