Prabodh Physics Class 11 Students MCQs FREE

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Physics Class 11 MCQs for Students

At constant pressure, the temperature of 56 grams of nitrogen is raised by 5°C. If the value of the universal gas constant is 8.31 J/mol K, then the work done by the gas will be :

The RMS velocity of hydrogen gas molecules at NTP is V m/s. The gas is heated at constant volume till the pressure becomes four times. The final RMS velocity is :

A gas at a pressure P is contained in a vessel. If the masses of all the molecules are halved and their speeds doubled, the resulting pressure will be

Gases exert pressure on the walls of the container because the gas molecules :

Gases exert pressure on the walls of the containing vessel because the gas molecules :

If a molecule of a gas encounter elastic collision against the wall of the vessel then :

At constant volume, the temperature is increased. Then :

The mean free path of a gas is directly proportional to

The mean free path is inversely proportional to

If a gas molecule of mass m moving with velocity u hits a wall and rebounds, then the change in momentum of the molecule is :

Physics Class 11 MCQs for Students

At constant pressure, the temperature of 56 grams of nitrogen is raised by 5°C. If the value of the universal gas constant is 8.31 J/mol K, then the work done by the gas will be :

(A) 8.31 J

(B) 41.5 J

(D) 8.15 J

Option c - 83.1 J

The RMS velocity of hydrogen gas molecules at NTP is V m/s. The gas is heated at constant volume till the pressure becomes four times. The final RMS velocity is :

(A) 2V

(B) 4V

(D) V/2

Option c - V

A gas at a pressure P is contained in a vessel. If the masses of all the molecules are halved and their speeds doubled, the resulting pressure will be

(A) P/2

(B) P

(D) 4P

Option c - 2P

Gases exert pressure on the walls of the container because the gas molecules :

(A) Have finite volume

(B) Obey Boyle's law

(D) Collide with one another

Option d - Collide with one another

Gases exert pressure on the walls of the containing vessel because the gas molecules :

(A) Possess momentum

(B) Have finite volume

(D) Obey gas laws

Option a - Possess momentum

If a molecule of a gas encounter elastic collision against the wall of the vessel then :

(A) It will rebound with the same velocity

(B) It will rebound with the increased velocity

(D) It will rebound with the same speed

Option d - It will rebound with the same speed

At constant volume, the temperature is increased. Then :

(A) Collisions on walls will be less

(B) the Number of collisions per unit of time will increase

(D) Collisions will not change

Option b - the Number of collisions per unit of time will increase

The mean free path of a gas is directly proportional to

(A) Density

(B) Temperature

(D) Molecular diameter

Option b - Temperature

The mean free path is inversely proportional to

(A) Molecular diameter

(B) the Fourth power of the molecular diameter

(D) the Square of the molecular diameter

Option d - the Square of the molecular diameter

If a gas molecule of mass m moving with velocity u hits a wall and rebounds, then the change in momentum of the molecule is :

(A) mu

(B) - mu

(D) 0

Option c - - 2mu

We covered all the prabodh physics class 11 above in this post for free so that you can practice well for the exam.

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Physics Class 11 MCQs for Students

At constant pressure, the temperature of 56 grams of nitrogen is raised by 5°C. If the value of the universal gas constant is 8.31 J/mol K, then the work done by the gas will be :

The RMS velocity of hydrogen gas molecules at NTP is V m/s. The gas is heated at constant volume till the pressure becomes four times. The final RMS velocity is :

A gas at a pressure P is contained in a vessel. If the masses of all the molecules are halved and their speeds doubled, the resulting pressure will be

Gases exert pressure on the walls of the container because the gas molecules :

Gases exert pressure on the walls of the containing vessel because the gas molecules :

If a molecule of a gas encounter elastic collision against the wall of the vessel then :

At constant volume, the temperature is increased. Then :

The mean free path of a gas is directly proportional to

The mean free path is inversely proportional to

If a gas molecule of mass m moving with velocity u hits a wall and rebounds, then the change in momentum of the molecule is :

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