NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1564 - 1568 of 2184

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Question number: 1564

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

A scientist says that the efficiency of his heat engine which operates at source temperature 107°C and sink temperature 27°C is 26%, then

Choices

Choice (4) Response

a.

It is possible but less probable

b.

Data are incomplete

c.

It is quite probable

d.

It is impossible

Question number: 1565

» Thermodynamics » Thermal Equilibrium

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MCQ▾

Question

For free expansion of the gas which of the following is true

Choices

Choice (4) Response

a.

Q = W = 0 a n d ∆ E i n t = 0

b.

c.

d.

Question number: 1566

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

The pressure and temperature of two different gases is P and T having the volume V for each. They are mixed keeping the same volume and temperature, the pressure of the mixture will be

Choices

Choice (4) Response

a.

4P

b.

2P

c.

d.

P

Question number: 1567

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

Mean kinetic energy (or average energy) per gm molecule of a monoatomic gas is given by

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1568

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Internal energy of an ideal gas does not depend upon volume of the gas.

Reason (Ꭱ)

Internal energy of an ideal gas depends on temperature of gas.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false