NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1502 - 1507 of 2184

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Question number: 1502

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

A flask is filled with 15 gm of an ideal gas at 27°C and its temperature is raised to 47°C. The mass of the gas that has to be released to maintain the temperature of the gas in the flask at 52°C and the pressure remaining the same is

Choices

Choice (4) Response

a.

2.0 g

b.

1.0 g

c.

2.5 g

d.

1.5 g

Passage

Read the passage given below and answer the questions that follows:

A diathermic piston divides adiabatic cylinder of volume V 0 into two equal parts as shown in the figure. Both parts contain ideal monoatomic gases. The initial pressure and temperature of gas in left compartment are P 0 and T 0 while that in right compartment are 2P 0 and 2T 0. Initially the piston is kept fixed and the system is allowed to acquire a state of thermal equilibrium.

Diathermic piston divides into adiabatic cylinder.

Diathermic Piston Divides into Adiabatic Cylinder.

In above figure we show that a diathermic piston divides adiabatic cylinder of volume V0 into two equal parts

Question number: 1503 (1 of 2 Based on Passage) Show Passage

» Kinetic Theory of Gases » Kinetic Theory of Gases

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MCQ▾

Question

The pressure in left compartment after thermal equilibrium is achieved is

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 1504 (2 of 2 Based on Passage) Show Passage

» Kinetic Theory of Gases » Kinetic Theory of Gases

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MCQ▾

Question

The heat that flown from right compartment to left compartment before thermal equilibrium is achieved is

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 1505

» Thermodynamics » Thermal Equilibrium

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MCQ▾

Question

A gas mixture consists of 2 moles of oxygen and 4 moles argon at temperature T neglecting all vibrational modes, the total internal energy of the system is

Choices

Choice (4) Response

a.

9 RT

b.

15 RT

c.

11 RT

d.

4 RT

Question number: 1506

» Atoms and Nuclei » Composition and Size of Nucleus

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MCQ▾

Question

The radius of the 30 Zn 64 nucleus is nearly (in fermi) -

Choices

Choice (4) Response

a.

2.4

b.

4.8

c.

1.2

d.

3.7

Question number: 1507

» Atoms and Nuclei » Radioactivity

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Assertion-Reason▾

Question

Assertion (Ꭺ)

Amongst α, β and γ - rays, γ has maximum penetrating power.

Reason (Ꭱ)

The α- particle is heavier than β and γ rays.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

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

c.

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

d.

Ꭺ is true but Ꭱ is false