What is the apparent position of an object below a rectangular block of glass 6 cm thick ,if a layer of water 4 cm thick is on top of the glass?Given that `a^mu_g=3//2` and `a^mu_w = 4//3`.
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The foal length of a glass convex lens in air is 15 cm.Calculate its focal lenth,when is is totally immersed in wate.Given a^mu_w=4//3 and a^mu_g=1.5 .

A glass slab is immersed in water.Find the critical angle at glass-water interface.Given, mu^a_g = 1.5 and mu^a_w=1.33 .

The bottom of a container is a 4.0 cm thick glass (mu=1.5) slab. The container contains two immiscible liquids A and B of depths 6.0 and 8.0 cm respectively. What is the apparent position of a scratch on the outer surface on the bottom of the glass slab, when viewed through the container? Refractive indices of A and B are 1.4 and 1.3 respectively.

Find the critical angle for a glass-water interface,if refractive index of glass 3//2 and that of water is 4//3 .

If the refractive index from air to glass is 3//2 adn that from air to water is 4//3 ,find the ratio of the focal length of glass lens in water in air.

A uniform magnetic field of 3000 G is established along the positive z-direction. A rectangular loop of sides 10 cm and 5 cm carries a current of 12 A. What is the torque on the loop shown in Fig. 4.28? What is the force ? is case corresponds to stable equilibrium? :

A uniform magnetic field of 3000 G is established along the positive z-direction. A rectangular loop of sides 10 cm and 5 cm carries a current of 12 A. What is the torque on the loop shown in Fig. 4.28? What is the force ? is case corresponds to stable equilibrium? :

A uniform magnetic field of 3000 G is established along the positive z-direction. A rectangular loop of sides 10 cm and 5 cm carries a current of 12 A. What is the torque on the loop shown in Fig. 4.28? What is the force? Is case corresponds to stable equilibrium? :

A uniform magnetic field of 3000 G is established along the positive z-direction. A rectangular loop of sides 10 cm and 5 cm carries a current of 12 A. What is the torque on the loop shown in Fig. 4.28? What is the force ?is case corresponds to stable equilibrium? :