Question

How much distance does light travel in 1 femtosecond?

Answer 1

Answer

0.6 × 10 raised to-7 metres

Explanation

Light travels in the speed of 3× 10 raised to 8 m/s

That is light travels in 1 second in

3 × 10 raised to 8 metres

1 second = 10 raised to 15 femtoseconds

That is light travels 3× 10 raised to 8 m / 10 raised to 15 femto second

In 1 femto second light travels distance of

3 × 10 raised to 8/ 10 raised to 15 femto second

= 0.6 × 10 raised to -7 metres