The image of point `P` when viewed from top of the slabs will be

The image of point P when viewd from top of the slabs will be

A ray of light undergoes refraction when it enters from air to glass.A picture is painted with blue, green and red colours. A glass slab is placed on this picture. Will the images of all these colours lie in the same plane in the slab when viewed from the top of the glass slab? Why?

A point object is placed at a distance of 20 cm from a glass slab, half immersed in water as shown in figure. The distance between two images when seen from the other side of the slab is (mu_(g) = (3)/(2) and mu_(w) = (4)/(3))

A point object is placed at a distance of 20 cm from a glass slab, H=18cm, half immersed in water as shown in figure. The distance between two images when seen from the other side of the slab is (mu_(g) = (3)/(2) and mu_(w) = (4)/(3))

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

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

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