Find the ratio of the speed of light in fused quartz to the speed of light in flint glass.
here,
refractive index of flint glass is n1 =(1.57- 1.75)
average value of n1=1.66 and speed of the light is v1
refractive index of fused quartz glass is n2=1.46 and speed of the light is v2
use,
refractive index n=(speed of the light in vacuum)/(speed of the light in material)
n=C/V
===>
v2/v1= n1/n2
v2/v1=1.66/1.46
v2/v1=1.14
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