There is a small air bubble inside a glass sphere `(mu=1.5)` of radius 10 cm. The bubble is `4.0cm` below the surface and is viewd normally from the outside. Find the apparent dipth of the bubble.

There is small air bubble inside a glass sphere (mu = 1.5) of radius 5 cm . The bubble is at 'O' at 7.5cm below the surface of the glass. The sphere is placed inside water (mu = (4)/(3)) such that the top surface of glass is 10cm below the surface of water. The bubble is viewed normally from air. Find the apperent depth of the bubble.

A glass sphere (mu=1.5) of radius 20 cm has a small air bubble 4 cm below its centre. The sphere is viewed from outside and along a vertical line through the bubble. The apparent depth of the bubble below the surface of sphere is (in cm)

An air bubble inside a glass slab (µ=1.5) appears 6 cm when viewed from one side and 4 cm when viewed from the opposite side. The thickness of the slab is

A small air bubble in a sphere of glass with radius 4 cm appears to be 1 cm from the surface when observed along a diameter. Find the true positino of the air bubble.

A glass sphere of diameter 50 cm and mu=1.5 has a small air bubble. Looking from outside the diameter, the bubble appears to be at a distance 10 cm the surface. Find the apparent position of the bubble when it is viewed from the diametrically opposite position.

An object lies 100 cm inside water (mu=4//3) . It is viewed from air nearly normally. Find the apparent depth of the object.

An air bubble in a glass sphere (mu = 1.5) is situated at a distance 3 cm from a convex surface of diameter 10 cm . At what distance from the surface will the bubble appear ?

An air bubble is seen inside a solid sphere of glass (n=1.5) of 4.0 cm diameter at a distance of 1.0 cm from the surface of the sphere (on seeing along the diameter). Determine the real position of the bubble inside the sphere.

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface . A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

A small air bubble in a glass block when seen from above appears to be raised because of :