NEET Physics: Questions 1530 - 1534 of 2142

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Question number: 1530

» Thermodynamics » Concept of Temperature

MCQ▾

Question

If 300 ml of gas at 17°C is cooled to 7°C at constant pressure, then its final volume will be,

Choices

Choice (4) Response

a.

540.23 ml

b.

289.65 ml

c.

135.35 ml

d.

280.45 ml

Question number: 1531

» Kinetic Theory of Gases » Work Done on Compressing a Gas

MCQ▾

Question

1 7 calories of heat are required to raise the temperature 2 moles of an ideal gas at constant pressure from 30°C to 35°C The amount of heat required to rise the temperature of same gas through the same range (30° C to 35° C) at constant volume (R = 2 Cal/mole K)

Choices

Choice (4) Response

a.

70 Cal

b.

450 Cal

c.

50 Cal

d.

30 Cal

Question number: 1532

» Thermodynamics » Concept of Temperature

MCQ▾

Question

Efficiency of a Carnot engine is 50 % when temperature of outlet is 500 K. In order to increase efficiency up to 60 % keeping temperature of intake the same what will be temperature of outlet

Choices

Choice (4) Response

a.

200 K

b.

600 K

c.

800 K

d.

400 K

Question number: 1533

» Kinetic Theory of Gases » Equation of State of a Perfect Gas

MCQ▾

Question

Gas at a pressure P 0 is contained in a vessel. If the mass of all the molecules are halved and their speeds an doubled, the resulting pressure p will be equal to

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 1534

» Atoms and Nuclei » Mass-Energy Relation

MCQ▾

Question

Energy of each photon obtained in the pair production process will be, if the mass of electron or positron is Equation a. m. u-

Choices

Choice (4) Response

a.

0.213 MeV

b.

0.465 MeV

c.

0.123 MeV

d.

0.321 MeV

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