NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2080 - 2082 of 2184

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Question number: 2080

» Rotational Motion » Rotational Kinetic Energy

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Appeared in Year: 2016

MCQ▾

Question

A solid sphere of mass and radius is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation will be:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2081

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

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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: 2082

» Gravitation » Gravitational Acceleration

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Appeared in Year: 2016

MCQ▾

Question

Starting from the centre of the earth having radius , the variation of (acceleration due to gravity) is shown by –

Choices

Choice (4) Response

a.

Variation of g with r - Choice A

Variation of G with R - Choice A

In figure how the centre of the earth having radius r, the variation of g is shown.

b.

Variation of g with r - Choice B

Variation of G with R - Choice B

In figure how the centre of the earth having radius r, the variation of g is shown.

c.

Variation of g with r - Choice C

Variation of G with R - Choice C

In figure how the centre of the earth having radius r, the variation of g is shown.

d.

Variation of g with r - Choice D

Variation of G with R - Choice D

In figure how the centre of the earth having radius r, the variation of g is shown.