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Light travels with speed of 2x10^8 m/s in crown glass of refractive index 1.5 . What is the speed of light in dense flint glass of refractive index 1.8 ?
is the answer 1.67x108.........
hi ...... take it this is audio type solution for your problem and answer is 1.97 x 108 m/s . bye..
light travels with speed va = 2x10^8m/s
glass refractive index na = 1.5
flint glass refractive index nb = 1.8
To find :-
speed of light ij dense flint glass vb
na/nb = vb/va
1.5/1.8 =vb/2x10^8m/s
0.8333x2x10^8 = vb
vb=1.6666x10^8
therefore, the speed of light in dense flint glass is 1.666x10^8m/s
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