Sainik School Entrance Exam 2019 Solved Paper

Question : 91 of 150

Marks: +1, -0

The light from sun takes

500 {\s}

to reach the earth. Assuming that the speed of light is

3,00,000 {\kms}^{-1}

, calculate the distance between the sun and the earth.

Solution:

(b) Speed = distance/time
Distance

=

speed

\times

time

=3,00,000 ×500

=150 × 106

=150

million

{\km}

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