Properties of Solids & Liquids (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 102 - 105 of 190

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Question number: 102

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

Question

The volume of a solid rubber ball when it is carried from the surface to the bottom of a 150 m deep lake decreases by 0.1 %. The value for bulk modulus of elasticity for rubber will be

Choices

Choice (4) Response

a.

21 × l0 6 Pa

b.

15 × 10 -4 Pa

c.

15 × l0 8 Pa

d.

12 × l0 9 Pa

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Question number: 103

» Properties of Solids & Liquids » Specific Heat Capacity

MCQ▾

Question

A student takes 50 gm wax (specific heat = 0.9 kcal/kg°C) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively.

Choices

Choice (4) Response

a.

2500 cal, 50°C

b.

1500 cal, 200°C

c.

2250 cal, 200°C

d.

1000 cal, 100°C

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Question number: 104

» Properties of Solids & Liquids » Heat Transfer » Convection

MCQ▾

Question

A room is maintained at 20°C by a heater of resistance 20 ohm connected to 400 volt mains. The temperature is uniform throughout the room and heat is transmitted through a glass window of area 4 m 2 and thickness 0.2 cm. What will be the temperature outside? Given that thermal conductivity K for glass is 0.2 cal/m/°C/sec and J = 4.2 J/cal

Choices

Choice (4) Response

a.

15.25 °C

b.

15.023 °C

c.

24.15 °C

d.

Question does not provide sufficient data or is vague

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Question number: 105

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

MCQ▾

Question

Which graph represents the variation of surface tension with temperature over small temperature ranges for water?

Choices

Choice (4) Response

a.

b.

c.

d.

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