NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1574 - 1577 of 2184

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Question number: 1574

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

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MCQ▾

Question

Which of the following processes are irreversible?

(1) Transfer of heat by radiation

(2) Electrical heating of a Ni chrome wire

(3) Transfer of heat by conduction

(4) Isothermal compression

Select the correct answers and mark it according to the following is:

Choices

Choice (4) Response

a.

1 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1,2 and 3 are correct

Question number: 1575

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

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Assertion-Reason▾

Question

Assertion (Ꭺ)

In isothermal process whole heat energy supplied to the body is converted into inter energy.

Reason (Ꭱ)

According to the first law of thermodynamics,

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

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

Question number: 1576

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

At room temperature, the r. m. s. speed of the molecules of certain diatomic gas is found to be 1930 m/s. The gas is

Choices

Choice (4) Response

a.

Cl 2

b.

H 2

c.

O 2

d.

F 2

Question number: 1577

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

Six moles of an ideal gas performs a cycle shown in figure. If the temperature T A = 600K, T B = 800 K, T C = 2200K and T D = 1200. K, the work done per

System of ideal gas Temperature at A, B, C and D

System of Ideal Gas Temperature at a, B, C and D

In above figure we show six moles of an ideal gas performs a cycle.

Choices

Choice (4) Response

a.

60 KJ

b.

30 kJ

c.

20 kJ

d.

40 kJ