The range of time scale about obtained ……. Can be obtained by dividing length scale by the speed of light.

Options

A. `10^(-18)` to `10^(22)` s
B. `10^(-14)` s to `10^(26)` s
C. `10^(-22)` s to `10^(18)`s
D. `10^(-26)` s to `10^(14)`

Answer

C

Explanation

`to` Small length = radius of nucleus = `10^(-14)` m
So the time = `(l)/(v)= (10^(-14))/(3 xx 10^(8)) ~~10^(-22)s`
Large length = length of galaxies = `10^(26)` m
So the time =`(l)/(v)= (10^(26))/( 3 xx 10^(8)) ~~ 10^(18)s`
So the order of time interval `10^(-22)` s to `10^(18)` s .