Question

Question 171

The diameter of the Sun is $1.4\times {10}^9$m and the diameter of the Earth is $1.2756\times {10}^7$ m. Compare their diameters by division.

Answer 1

Diameter of the Sun = $1.4\times {10}^{9}m$
Diameter of the Earth = $1.2756\times {10}^{7}m$
For comparison, we have to change both diameter in same powers of 10 i.e. $1.2756\times {10}^7=0.012756\times {10}^9$
Hence, if we divide diameter of Sun by diameter of Earth, we get
$\frac{1.4\times {10}^9}{0.012756\times {10}^9}=110$
So, diameter of Sun is 110 times the diameter of Earth.