Properties of Solids & Liquids (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 185 - 188 of 190

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Question number: 185

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

Appeared in Year: 2016

MCQ▾

Question

A rectangular film of liquid is extended from to . If the work done is , the value of the surface tension of the liquid is –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 186

» Properties of Solids & Liquids » Heat Transfer » Convection

Appeared in Year: 2016

MCQ▾

Question

Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at , while the other one is at If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is –

Choices

Choice (4) Response

a.

More then

b.

Less than but greater than

c.

d.

Question number: 187

» Properties of Solids & Liquids » Newton's Law of Cooling

Appeared in Year: 2016

MCQ▾

Question

A body cools from a temperature to in 10 minutes. The room temperature is T. Assume that Newton’s law of cooling is applicable. The temperature of the body at the end of next will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 188

» Properties of Solids & Liquids » Application of Surface Tension

Appeared in Year: 2016

MCQ▾

Question

Three liquids of densities and (with ), having the same value of surface tension T, rise to the same height in three identical capillaries. The angle of contact and obey –

Choices

Choice (4) Response

a.

b.

c.

d.

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