A point source S is placed at a height h from the bottom of a vessel of height `H(lt h)`. The vessel is polished at the base. Water is polished at the base. Water is gradually filled in the vessel at a constant rate `alpha m^(3)//s`. The distance d of image of the source after reflection from mirror from the bottom of the vessel varies with time t as

Water is being poured in a vessel at a constant rate alpha m^(2)//s . There is a small hole of area a at the bottom of the tank. The maximum level of water in the vessel is proportional to

Water is being poured in a vessel at a constant rate alpha m^(2)//s . There is a small hole of area a at the bottom of the tank. The maximum level of water in the vessel is proportional to

A plane mirror is fixed at the bottom of a vessel as shown in the figure. Water of refractive index mu is filled up to a height h in the vessel. There is a fish at a height h//2 from bottom of vessel and there is a bird at a height h above the surface of water in the vessel. (a) Calculate apparent distance of bird as seen by the fish. (b) Calculate apparent distance of image of bird in mirror as seen by the fish. (c) Calculate apparent distance of fish as seen by the bird. (d) Calculate apparent distance of image of fish in the mirror as seen by the bird.

An object is fixed at the bottom of a vessel and water is filled in the vessel upto a height of 10 cm. A plane mirror is placed at a height of 7 cm from the surface of water in such a way that its reflecting surface faces the water. The distance of the image from the mirror is (Refractive index of water, n = 1.33)

A thin equiconvex glass lens (mu_(g)=1.5) is beign placed on the top of a vessel of height h=20cm as shown figure. A luminous point source is beign placed at the bottom of vessel on the principal axis of the lens. When the air is on both the side of the lens the image of luminous source is formed at a distance of 20cm from the lens out side the vessel. When the air inside the vessel is being replaced by a liquid of refractive index mu_(l) the image of the same source is being formed at a distance 30cm from the lens outside the vessel. Find the mu_(l) .

A thin equiconvex glass lens (mu_(g)=1.5) is beign placed on the top of a vessel of height h=20cm as shown figure. A luminous point source is beign placed at the bottom of vessel on the principal axis of the lens. When the air is on both the side of the lens the image of luminous source is formed at a distance of 20cm from the lens out side the vessel. When the air inside the vessel is being replaced by a liquid of refractive index mu_(l) the image of the same source is being formed at a distance 30cm from the lens outside the vessel. Find the mu_(l) .

There is a hole at the bottom of a large open vessel. If water is filled upto a height h, it flows out in time t. if water is filled to a height 4h, it will flow out in time

There is a hole at the bottom of a large open vessel. If water is filled upto a height h, it flows out in time t. if water is filled to a height 4h, it will flow out in time