Question

solve this numerical​

Answer 1

Explanation:

Let c be speed of light in vaccum and v be speed of light in benzene.

Refractive index of benzene=1.5=speed of light in vaccum/speed of light in benzene.

c/v=1.5

v=2/3c

Percentage reduce in speed of light

=(c-v/c)*100

=(1/3)*100=33.33%