Question Answers

A person sitting at a distance of 10m from a point source of sound of power W_(0) writes down the following equation for the waves received by him. y=Asin(20pix+7000pit) (a) Determine the density of the air, if the Bulk modules of air =1.40xx10^(5)Nm^(-2) (b) If the largest pressure amplitude tolerable to a human car is [...]

A cannon a target are 5.0km apart on the same horizontal plane. How long will the shell launched with a velocity of 240ms−1 take to reach the tanget ? (g=10ms−2) A cannon a target are 5.0km apart on the same horizontal plane. How long will the shell launched with a velocity of 240ms−1 take to [...]

A stationary particle explodes into two particles of masses m1​ and m2​ which move in opposite direction with velocities v1​ and v2​. The ratio of their kinetic energies E1​/E2​ is A stationary particle explodes into two particles of masses m1​ and m2​ which move in opposite direction with velocities v1​ and v2​. The ratio of [...]

The ceiling of a long hall is 25m high. What is the maximum horizontal distance that a ball thrown with a speed of 40ms −1 can go without hitting the ceiling of the hall? The ceiling of a long hall is 25m high. What is the maximum horizontal distance that a ball thrown with a [...]

A wooden block is floating on water kept in a beaker. A wooden block is floating on water kept in a beaker. August 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

consider a block immersed in a beaker containing water as shown. consider a block immersed in a beaker containing water as shown. August 24, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A body projected with the same velocity at two different angles covers the same horizontal distance R.If t and t’ are the two times of flight, prove that R=12>t’ A body projected with the same velocity at two different angles covers the same horizontal distance R.If t and t' are the two times of flight [...]

Water has been filled in a conical vessel fixed on the horizontal surface at its base. When a very small hole is made in its curved surface as shown in the figure, water will come out in which of the direction shown Water has been filled in a conical vessel fixed on the horizontal surface [...]

A body projected vertically upwards from A, the top of a tower, reaches the ground in t1 seconds.If it is projected vertically downwards from A with the same velocity, it reaches the ground in t2 seconds.If it falls freely from rest at A, in what time does it reach the ground ? A body projected [...]

For a stream line flow of water following statements are given below (a) Two streamlines do not intersect each other. (b) streamlines must be straight. (c ) streamlines flow is more likely for liquids with low density and height viscosity. (d) streamlines flow is more likely for liquids with high density and low viscosity. A [...]