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The speed of light in vacuum is 3xx10^(8...

The speed of light in vacuum is `3xx10^(8)m//s`. How many nanosecond does it take to travel one metre in a vacuum?

A

`8ns`

B

`10/3ns`

C

`3.34ns`

D

none of these

Text Solution

Verified by Experts

(b) `t=s/v=1/(3xx10^(8))=1/3xx10^(-8)s`
`=1/3xx(10^(-8))/(10^(-9))ns=10/3ns`
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