Find time taken by light to pass through slab 15 cm thick and its refractive index is also given
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optical distance in a medium of refractive index μμ and thickness t is μxμx
∴∴ time =μxc=μxc here cc- is velocity of light
t=1.5×4×10−33×108t=1.5×4×10−33×108
=2×1011seconds=2×1011seconds
Hence a is the correct answer.
∴∴ time =μxc=μxc here cc- is velocity of light
t=1.5×4×10−33×108t=1.5×4×10−33×108
=2×1011seconds=2×1011seconds
Hence a is the correct answer.
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