NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1304 - 1307 of 2184

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Question number: 1304

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

One mole of a perfect gas in a cylinder fitted with a piston has a pressure P, volume V and temperature T. If the temperature is increased by 1 K keeping pressure constant, the increase in volume is

Choices

Choice (4) Response

a.

V

b.

c.

d.

Question number: 1305

» Properties of Solids & Liquids » Heat Transfer » Radiation

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MCQ▾

Question

Two thermometers A and B are exposed in sunlight. The bulb of A is painted black, But that of B is not painted. The correct statement regarding this case is

Choices

Choice (4) Response

a.

Temperature of A will remain more than B

b.

Temperature of A will rise faster than B but the final temperature will be the same

c.

Temperature of B will rise faster

d.

A and B show equal rise in beginning

Question number: 1306

» Properties of Solids & Liquids » Surface Energy and Surface Tension

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MCQ▾

Question

A film of water is formed between two straight parallel wires of length 10 cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism, how much work will have to be done (Surface tension of water = 70 × 10 -2 N/m)

Choices

Choice (4) Response

a.

5.76 × 10 -5 Joule

b.

1.44 × 10 -5 Joule

c.

7.22 × 10 -6 Joule

d.

2.88 × 10 -5 Joule

Question number: 1307

» Thermodynamics » Thermal Equilibrium

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Assertion-Reason▾

Question

Assertion (Ꭺ)

The isothermal curves intersect each other at a certain point.

Reason (Ꭱ)

The isothermal change takes place slow; so the isothermal curves have very little slope.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

Ꭺ is false but Ꭱ is true