Question

of the difference in the speeds of light in glass
and water is 2.505 x 10 m/s, find the speed of light
[R. I of glass = 1.5. RI. of water = 1.333
​

Answer 1

Answer:

3*10^8 m/s

Explanation:

we know μ =  c/V

from that, we may say V= c/μ

so,

$Vw-Vg$ = $2.5*10^7$

c/μw - c/μg = $2.5*10^7 m/s$

substituting,

C   [$\frac{1}{1.3} -\frac{1}{1.5}$ ] =2.5*10^7

C [ 1.5-1.3]/1.5*1.3 = 2.5*10^7

solving,

we get

C= $3*10^8 m/s$

Hope it helps you... :D