MHT CET 2025 21st April Morning Shift | Heat and Thermodynamics Question 12 | Physics

Two cylinders A and B fitted with pistons contain equal amount of an ideal rigid diatomic gas at 303 K . The piston of cylinder $A$ is free to move and that of cylinder B is held fixed. The same amount heat is given to the gas in each cylinder. If the rise in temperature of the gas in cylinder B is 49 K , then the rise in temperature of the gas in $A$ is

30 K

35 K

70 K

75 K

MHT CET 2025 20th April Evening Shift

MCQ (Single Correct Answer)

-0

If a gas is compressed isothermally then the r.m.s. velocity of its molecules

increases.

decreases.

remains the same.

first increases and then decreases.

MHT CET 2025 20th April Evening Shift

MCQ (Single Correct Answer)

-0

The following graph represents the radiant power versus wavelength of the black body. The area under the curve represents MHT CET 2025 20th April Evening Shift Physics - Heat and Thermodynamics Question 13 English

MHT CET 2025 20th April Evening Shift Physics - Heat and Thermodynamics Question 13 English

the maximum wavelength emitted by the object.

the minimum wavelength emitted by the object.

the total energy emitted per unit time by the black body at some particular wavelength

the total energy emitted per unit time per unit area by the black body at all wavelengths.

MHT CET 2025 20th April Evening Shift

MCQ (Single Correct Answer)

-0

In a cyclic process, work done by the system is

more than the heat given to the system.

equal to the heat given to the system.

zero.

independent of the heat given to the system.

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