Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A cylindrical rod with one end in a steam chamber and the other end in ice results in melting of 0.1 g of ice per second. If the rod is replaced by another with half the length and
25
Oct
A cylindrical rod with one end in a steam chamber and the other end in ice results in melting of 0.1 g of ice per second. If the rod is replaced by another with half the length and A cylindrical rod with one end in a steam chamber and the other end in ice results [...]
A solid copper cube of edge 1 cm is suspended in an evacuated enclosure. Its temperature is found to fall from 100 C to 99 C in 100 s. Another solid copper cube of edge 2 cm, with
25
Oct
A solid copper cube of edge 1 cm is suspended in an evacuated enclosure. Its temperature is found to fall from 100 C to 99 C in 100 s. Another solid copper cube of edge 2 cm, with A solid copper cube of edge 1 cm is suspended in an evacuated enclosure. Its temperature is [...]
The total energy radiated from a black body source is collected for one minute and is used to heat a quantity of water. The temperature of water is found to increase form 20 C to 20.5 C.
25
Oct
The total energy radiated from a black body source is collected for one minute and is used to heat a quantity of water. The temperature of water is found to increase form 20 C to 20.5 C. The total energy radiated from a black body source is collected for one minute and is used to [...]
There is a formation of x cm thick layer of snow on water, when the temperature of air is -theta C (less than freezing point). If the thickness of layer increases from x to y in the time t, then
25
Oct
There is a formation of x cm thick layer of snow on water, when the temperature of air is -theta C (less than freezing point). If the thickness of layer increases from x to y in the time t, then then There is a formation of x cm thick layer of snow on water when [...]
A black metal foil is warmed by radiation from a small sphere at temperature T and at a distance d. It is found that the power received by the foil is P. If both the temperature and the distance
25
Oct
A black metal foil is warmed by radiation from a small sphere at temperature T and at a distance d. It is found that the power received by the foil is P. If both the temperature and the distance A black metal foil is warmed by radiation from a small sphere at temperature T and [...]
A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120 C. Then
25
Oct
A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120 C. Then A solid cube and a solid sphere of the same material have equal surface area. Both are at the same temperature 120 C. Then October 25, 2020 Category: Uncategorised (JEE Advanced [...]
A room is maintained at 20 C by a heater of resistance 20 ohm connected to 200 volt mains. The temperature is uniform throughout the room and heat is transmitted through a glass
25
Oct
A room is maintained at 20 C by a heater of resistance 20 ohm connected to 200 volt mains. The temperature is uniform throughout the room and heat is transmitted through a glass A room is maintained at 20 C by a heater of resistance 20 ohm connected to 200 volt mains. The temperature is [...]
A composite metallic bar of uniform cross-section is made up of length 25 cm of copper, 10 cm of nickel and 15 cm of aluminium, each part being in perfect thermal contact with the adjoining part.
25
Oct
A composite metallic bar of uniform cross-section is made up of length 25 cm of copper, 10 cm of nickel and 15 cm of aluminium, each part being in perfect thermal contact with the adjoining part. 10 cm of nickel and 15 cm of aluminium A composite metallic bar of uniform cross-section is made up [...]
Five identical rods are joined as shown in figure. Point A and C are maintained at temperature 120 C and 20 C respectively. The temperature of junction B will be
25
Oct
Five identical rods are joined as shown in figure. Point A and C are maintained at temperature 120 C and 20 C respectively. The temperature of junction B will be Five identical rods are joined as shown in figure. Point A and C are maintained at temperature 120 C and 20 C respectively. The temperature [...]
Three rods of same dimensions are arranged as shown in figure. They have thermal conductivities K1, K2 and K3. Points P and Q are maintained at different temperatures for the heat
25
Oct
Three rods of same dimensions are arranged as shown in figure. They have thermal conductivities K1, K2 and K3. Points P and Q are maintained at different temperatures for the heat K2 and K3. Points P and Q are maintained at different temperatures for the heat Three rods of same dimensions are arranged as shown [...]