NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1540 - 1543 of 2184

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Question number: 1540

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

How much work to be done in decreasing the volume of and ideal gas by an amount of 1.4 × 10 -4 m 3 at normal temperature and constant normal pressure of 1 × 10 -5 N/ m 2

Choices

Choice (4) Response

a.

14 Joule

b.

25 Joule

c.

28 Joule

d.

27 Joule

Question number: 1541

» Thermodynamics » Thermal Equilibrium

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MCQ▾

Question

A monoatomic ideal gas, initially at temperature T 1 is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T 2 by releasing the piston suddenly. If I 1 and I 2 are the lengths of the gas column before and after expansion respectively, then is given by

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1542

» Atoms and Nuclei » Radioactivity

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Assertion-Reason▾

Question

Assertion (Ꭺ)

The mass of β -particles when they are emitted is higher than the mass of electrons obtained by other means.

Reason (Ꭱ)

β -particle and electron, both are similar particles.

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 true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 1543

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

The kinetic energy of one gram molecule of a gas at 70 0 C temperature and normal pressure is (R = 8.31 J/mole- K)

Choices

Choice (4) Response

a.

b.

c.

d.