Questions
A point source of light is placed at the bottom of a water lake. If the area of the illuminated circle on the surface is equal to 3 times the square of the depth of the lake. The refractive index of water is
detailed solution
Correct option is B
Area = 3d2; Area of base of cone=πh2μ2-1=πd2μ2-1 3d2=πd2μ2-1 ; μ2-1=π3 ; μ=π3+1Talk to our academic expert!
Similar Questions
A vessel is half filled with a liquid of refractive index μ. The other half of the vessel is filled with an immiscible liquid of refractive index 1.5 μ. The apparent depth of vessel is 50% of the actual depth. The value of μ is
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