NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1549 - 1553 of 2184

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Passage

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

V-T graph of a process of monoatomic ideal gas is as shown in figure.

Graph of volume vs pressure square depicts ABCD

Graph of Volume vs Pressure Square Depicts ABCD

In above figure expansion of monoatomic molecule is shown.

Question number: 1549 (2 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

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MCQ▾

Question

Change in internal energy of the gas is zero in process (s) –

Choices

Choice (4) Response

a.

DA and BC only

b.

DA, AB and BC

c.

DA and AB only

d.

DA only

Question number: 1550 (3 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

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MCQ▾

Question

Heat is supplied to the gas in process (s) -

Choices

Choice (4) Response

a.

DA and AB only

b.

AB and BC only

c.

DA only

d.

DA, AB and DC

Question number: 1551

» Thermodynamics » Laws of Thermodynamics » Second Law of Thermodynamics

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Assertion-Reason▾

Question

Assertion (Ꭺ)

It is not possible for a system, unaided by external agency to transfer heat from a body at low temperature to another body at higher temperature.

Reason (Ꭱ)

According to Clauses statement, A process is possible whose sole result is the transfer heat from a cooled object to a hotter object.

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.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 1552

» Atoms and Nuclei » Mass-Energy Relation

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MCQ▾

Question

If mass equivalent to one mass of proton is completely converted into energy then determine the energy produced?

Choices

Choice (4) Response

a.

911.49 MeV

b.

931.49 MeV

c.

431.49 MeV

d.

731.49 MeV

Question number: 1553

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

An ideal heat engine working between temperature T and r, has an efficiency η, the new efficiency of engine if both the source and sink temperature are doubled, will be

Choices

Choice (4) Response

a.

b.

c.

d.

η