Comprehension For Q Nos 14 to 16 A container contains water up to a height of 20 cm and there is a point source at the centre of

Question

Comprehension For Q Nos 14 to 16 A container contains water up to a height of 20 cm and there is a point source at the centre of the bottom 4 of the container The celling of the room is 2 0 m above the water surface Refractive index of water ring of radius R floats on water surface such that its centre lies vertically above the source Ceiling 20 cm S 14 If radius of the ring is 15 cm the radius of the shadow of ring formed on the ceiling is 1 2 81 m 3 1 16 m V 22 7 cm 3 20 cm 2 1 65 m 4 4 46 m 15 The minimum radius of ring for which its shadow cannot be formed on the ceiling is nearly 2 21 5 cm 4 25 cm 16 Keeping the radius of ring 15 cm the level of water in the liquid is varied When the level of liquid becomes h the shadow of the ring disappears The value of his 1 5 2 cm V 5 7 cm 2017 A cm

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