NEET Physics: Questions 1303 - 1306 of 2098

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Question number: 1303

» Thermodynamics » Concept of Temperature

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.

V91

b.

2V273

c.

V

d.

V273

Question number: 1304

» Properties of Solids & Liquids » Heat Transfer » Radiation

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 rise faster than B but the final temperature will be the same

b.

Temperature of B will rise faster

c.

Temperature of A will remain more than B

d.

A and B show equal rise in beginning

Question number: 1305

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

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.

2.88 × 10 -5 Joule

b.

1.44 × 10 -5 Joule

c.

7.22 × 10 -6 Joule

d.

5.76 × 10 -5 Joule

Question number: 1306

» Thermodynamics » Thermal Equilibrium

Assertion-Reason▾

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.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

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