NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2015 - 2018 of 2184

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Question number: 2015

» Rotational Motion » Moment of Inertia

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Question

One circular ring and one circular disc, both are having the same mass and radius. The ratio of their moments of inertia about the axes passing through their centers and perpendicular to their planes, will be

Choices

Choice (4) Response

a.

2: 1

b.

1: 1

c.

4: 1

d.

1: 2

Question number: 2016

» Rotational Motion » Concepts of Rotational Motion

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A solid sphere, disc and solid cylinder all of the same mass and made up of same material are allowed to roll down (from rest) on an inclined plane, then

Choices

Choice (4) Response

a.

Solid sphere reaches the bottom late

b.

Disc will reach the bottom first

c.

Solid sphere reaches the bottom first

d.

All of team reach the bottom at the same time

Question number: 2017

» Rotational Motion » Values of Moments of Inertia

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A long rod has a mass of 5 kg and length 2 m. The moment of inertia about an axis passing through the center and perpendicular to the length of rod will be

Choices

Choice (4) Response

a.

0.01 kg-m 2

b.

0.001 kg-m 2

c.

1.66 kg-m 2

d.

0.008 kg-m 2

Question number: 2018

» Rotational Motion » Conservation of Angular Momentum

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A cord is wound round the circumference of wheel of radius r. The axis of the wheel is horizontal and moment of inertia about it is I. A weight mg is attached to the end of the cord and falls from the rest. After falling through a distance h the angular velocity of the wheel will be

Choices

Choice (4) Response

a.

b.

c.

d.