The equation of refraction at a spherical surface is `mu_2/v-mu_1/u=(mu_2-mu_1)/R`
Taking `R=oo`, show that this equation leads to the equation
`(Real depth)/(Apparent depth)=mu_2/mu_1` for fraction at a plane surface.

Is the formula "Real depth/Apparent depth = mu." valid if viewed from a position quite away from the normal ?

Find the maximum angle of refraction when a light ray is refracted from glass (mu= 1.50) to air.

Monochramatic light is incident on the pane interface AB between two media of refractive indices mu_1 and mu_2(mu_2gtmu_1) at an angle of incidence theta as shown in figure. The angle theta is infinitesimally greater thannte critical angle for the two media so thast total internal reflection takes place. Now, if a transparent slab DEFG of uniform thickness and of refractive inde mu_2 is introduced on theinterface (as shown in figure ) , show that for any value of mu_2 all light will ultimately be reflected back into medium II.

The dimension of (1)/(mu_(0)epsilon_(0)) is

The equivalent capacitance of two capatitors in series is 1.5 mu F . The capacitance of one of them is 4 mu F . The value of capacitance of the other is

Figure shows three transparent media of refractive indices mu_1, mu_2 and mu_3 . A point object O is placed in the medium mu_2 . If the entire medium on the right of the spherical surface has refractive index mu_1 , the image forms at O'. If this entire medium has refractive index mu_3 the image form at O''. In the situation shown

A vessel of depht 'x' is half filled with oil of refractive index mu_(1) and the other half is fillied with water of refractive index mu_(2) . The apparent depth of the vessel when viewed from above is

Can the dispersive power omega = (mu_v-mu_r)/(mu-1) be negative? What is the sign of omega if a hollow prism is immersed into water?

The relation between mu_r andX_m is mu_r=1+X_m How will you arrive at this relation ? Explain.

The dimensions of (mu_0 epsilon_0)^(-1/2) are :