Show that `B =mu_0 (H+I)`, where the symbols have their usual meanings.

Show that I = (mu_r-1) H , where the symbols have their usual meanings.

Show that delta = (mu-1)A ,( when symbols have their usual meanings.) for prism of small angle.

Show that n=sqrt(mu_r*epsilon_r) where the symbols have their usual meanings.

Define Power. Prove that P= vecF.vecupsilon where the symbols have their usual meanings.

Check the correctness of the relation : v=sqrt((E )/(rho)) where the symbols have their usual meanings.

For a spherical surface,when refraction takes place from a rarer medium (mu_1) to a denser medium (mu_2) , we write -(mu_1)/u + (mu_2)/v = ( mu_2-mu_1)/R where the symbols have their usual meanings. Now suppose that the object is placed in the denser to the rarer medium . Then, rewrite the above equation.

Show that L_z = xp_y - yp_x , where letters have their usual meanings.

Explain the phenomenon of refraction at a plane surface seperating two transparent media and show that mu_ = c//v , where letters have their usual meanings.