An air bubble inside water. The refractive index of water is 4/3 . At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the bubble:-

An air bubble inside water behaves like a :

A transparent sphere of radius R and refractie index mu is kept in air. At what distance from the surface of the sphere shold a point object be placed so as to form a rea image at the same distance from the sphere?

An air bubble inside the water behaves as:

Air bubble in water behaves as

Air bubble in water behaves as