Question Answers

Two bodies of equal masses are heated at a uniform rate under identical conditions. The change in temperature in the two cases is shown graphically. what are their melting points? Two bodies of equal masses are heated at a uniform rate under identical conditions. The change in temperature in the two cases is shown graphically. [...]

A substance is in the solid form at 0C. The amount of heat added to this substance and its temperature are plotted in the following graph. A substance is in the solid form at 0C. The amount of heat added to this substance and its temperature are plotted in the following graph. September 1, 2020 [...]

A magnetic field of ( 5.0 * 10^-3 k ) T exerts a force of ( 2.0 i + 1.5 j ) * 10^-10 N on a particle having a charge of 1.0 * 10^-9 C and going in the x-y plane. Find the velocity of the particle. A magnetic field of ( 5.0 * [...]

When 0.400kg of water at 30C is mixed with 0.150kg of water at 25C contained in a calorimeter, the final temperature is found to be 27C, find the water equivalent of the calorimeter. find the water equivalent of the calorimeter. the final temperature is found to be 27C When 0.400kg of water at 30C is [...]

An electron is moving northward with a velocity of 10^7 ms^-1 in a magnetic field of 3 t directed eastwards. Calculate the instantaneous force on the electron. given that charge on electron = 1.6 * 10^-19 C. September 1, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Two bodies have the same heat capacity. If they are combined to form a fsingle composite body, show that the equivalent specific heat of this composite body is independent of the masses of the individual bodies. show that the equivalent specific heat of this composite body is independent of the masses of the individual bodies. [...]

In the Joule experiment, a mass of 20 kg falls through 1.5m at a constant velocity to stir the water in a calorimeter. If the calorimeter has a water equivalent of 2 g and contains 12 g of water, what is f, the mechanical equivalent of heat, for a temperature rise of 5.0C? a mass [...]

An electric heater supplies 1.8 kW of power in the form of heat to a tank of water. How long will it take to heat the 200 kg of water in the tank from 10 to 70C ? Assume heat losses to the surroundings to be negligible What is the change in potential energy (in [...]

A charge particle is having charge q = 50 micro C is projected vertically upward with a speed of 5.0 * 10^4 km/s A charge particle is having charge q = 50 micro C is projected vertically upward with a speed of 5.0 * 10^4 km/s September 1, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

A 60 kg boy running at 5.0m/s while playing basketball falls down on the floor and skids along on his leg until he stopes. How many calories of heat are generated between his leg and the floor? Assume that all this heat energy is confined to a volume of 2.0cm^3 of his flesh. What is [...]