Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

A block of metal is heated to a temperature much higher than the room temperature and allowed to cool in a room free from air currents. Which of the following curves correctly A block of metal is heated to a temperature much higher than the room temperature and allowed to cool in a room free [...]

A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool in the same surroundings. If the temperature difference between A solid sphere and a hollow sphere of the same material and size are heated to the same temperature and allowed to cool [...]

A body cools in a surrounding which is at a constant temperature of theta 0. Assume that it obeys Newton’s law of cooling. Its temperature theta is plotted against time t. Tangents A body cools in a surrounding which is at a constant temperature of theta 0. Assume that it obeys Newton's law of cooling. [...]

A hollow copper sphere S and a hollow copper cube C, both of negligibly thick walls of same area, are filled with water at 90 C and allowed to cool in the same environment. A hollow copper sphere S and a hollow copper cube C are filled with water at 90 C and allowed to [...]

For a small temperature difference between the body and the surroundings, the relation between the rate of heat loss R and the temperature of the body is depicted by For a small temperature difference between the body and the surroundings the relation between the rate of heat loss R and the temperature of the body [...]

Water and turpentine oil ( of specific heat less than that of water) are both heated to same temperature. Equal amounts of these placed in identical calorimeters are then left in air. Water and turpentine oil ( of specific heat less than that of water) are both heated to same temperature. Equal amounts of these [...]

A hot metallic sphere of radius r radiates heat. It’s rate of cooling is A hot metallic sphere of radius r radiates heat. It's rate of cooling is October 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Radius of a conductor increases uniformly from left end to right end as shown in figure. Material of the conductors is isotropic and its curved surface is thermally isolated from surrounding. Radius of a conductor increases uniformly from left end to right end as shown in figure. Material of the conductors is isotropic and its [...]

The rates of cooling of two different liquids put in exactly similar calorimeters are kept in identical surroundings are the same if The rates of cooling of two different liquids put in exactly similar calorimeters are kept in identical surroundings are the same if October 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

The adjoining diagrams shows the spectral energy density distribution E lemda of a black body at two different temperatures. If the areas under the curves are in the ratio 16 : 1, the value The adjoining diagrams shows the spectral energy density distribution E lemda of a black body at two different temperatures. If the [...]