Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300K. Piston of A is free to move and piston of B is fixed. Same amount of heat is given to the gases in two cylinders. Temperature of the gas in cylinder A increases by 30K. Then, increase in temperature of the gas in the cylinder B is: (γ=1.4 for diatomic gas)

Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300K. Piston of A is free to move and piston of B is fixed. Same amount of heat is given to the gases in two cylinders. Temperature of the gas in cylinder A increases by 30K. Then, increase in temperature of the gas in the cylinder B is: (γ=1.4 for diatomic gas)

calculate the initial rate of rise of temperature of the sphere The sphere may be treated as a black body rho_(copper) =8.93xx 10^(3)kg//m^(3) s = 3.7xx10^(2) Jkg^(-2) K^(-1) sigma = 5.7 xx 10^(8) Wm^(-2) K^(-4) . solid copper sphere of dimater 10mm is cooled to temperature of 150K and is then placed in an enclousure at 290K Assuming that all interchange of heat is by radiation