22.
The refractive index of a medium 'x' with respect to a medium 'y is 2/3
and the refractive index of medium y with respect to medium *z is 4/3.
Find the refractive index of medium z with respect to medium 'x. If the
speed of light in medium 'x' is 3 x 108 ms-1, calculate the speed of light
in medium 'y'.
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Answer:
refractive index of z w.r.t. x is 1/2
speed of light is 2×100000000ms-1
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