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The deviation produced by a thin glass p...

The deviation produced by a thin glass prism placed in air, when immersed in water is
[Given `""_(a)mu_(g) = 3//2 and ""_(a)mu_(w) = 4//3`]

A

reduces to one fourth

B

reduces to half

C

remains the same

D

increases four times

Text Solution

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The correct Answer is:
A
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Show that the angle of deviation produced by a thin prism is reduced to one fourth (w.r.t. air) when it is immersed in water. Given .^a mu_g = 3//2 and .^a mu_g = 4//3 .

The ratio of angle of minimum deviation of a prism in air and when dipped in water will be (._(a)mu_(g)=3//2 and ._(a)mu_(w)=4//3)

The ratio of the angle of minimum deviation of a prism in air and when dipped in water will be (""_(a)mu_(g) = (2)/(3) and ""_(w)mu_(g) = (9)/(8)) and

A thin glass prism has a refracting angle of 6^(@) . The angle of incidence is very small . What is the deviation produced by the prism , if the prism is kept in water ? [""_(a) n_(g) = 1.5 , "" _(a) n_(w) = 1.33 ]

What is the apparent position of an object below a rectangular block of glass 6 cm thick, if a layer of water 4 cm thicke ia on the top of the glass ? Given ^(a)mu_(g) = 3//2 and ^(a)mu_(w) = 4//3 .

Calculate the critical angle foe total internal reflection of light travelling from (i) water into air (ii) glass into water. Given, .^(a)mu_(w) = 1.33 and .^(a)mu_(g) = 1.5 .

Focal length of a convex lense in air is 10cm . Find its focal length in water. Given that mu_g=3//2 and mu_w=4//3 .

There is an equiconcave glass lens with radius of each face as R and ._(a)mu_(g) = 3//2 and ._(a)mu_(W) = 4//3 . If there is water in object space and air in image space, then the focal length is

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