A pond of depth `20 cm` is half filled with an oil of `mu = 1.4` and the other half is filled with water of refractive index `1.33`. Calculate apparent depth of the tank when viewed normally.

A pond of depth 20 cm is filled with water of refractive index 4//3 . Calculate apparent depth of the tank when viewed normally.

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

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

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

A vessel of depth d is half filled with a liquid of refractive index mu_1 and the other half is filled with a liquid of refractive index mu_2 . The apparent depth of the vessel, when looked at normally, is

A vessel of depth 2d cm is half filled with a liquid of refractive index mu_(1) and the upper half with a liquid of refractive index mu_(2) . The apparent depth of the vessel seen perpendicularly is

A vessel of depth 2d cm is half filled with a liquid of refractive index mu_(1) and the upper half with a liquid of refractive index mu_(2) . The apparent depth of the vessel seen perpendicularly is