NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2015 - 2019 of 2142

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Question number: 2015

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

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.

All of team reach the bottom at the same time

d.

Solid sphere reaches the bottom first

Question number: 2016

» Rotational Motion » Values of Moments of Inertia

MCQ▾

Question

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.

1.66 kg-m 2

c.

0.008 kg-m 2

d.

0.001 kg-m 2

Question number: 2017

» Rotational Motion » Conservation of Angular Momentum

MCQ▾

Question

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.

Question number: 2018

» Rotational Motion » Radius of Gyration

MCQ▾

Question

The radius of gyration of a disc of mass 200 g and radius 3.2 cm, about an axis passing through its center of gravity and perpendicular to the plane is

Choices

Choice (4) Response

a.

2.54 cm

b.

1.06 cm

c.

0.54 cm

d.

2.26 cm

Question number: 2019

» Rotational Motion » Rigid Body Rotation Equations of Rotational Motion

MCQ▾

Question

A wheel has a speed of 1200 revolutions per minute and is made to slow down at a rate of 4 rad /s 2. The number of revolutions is makes before coming to rest is,

Choices

Choice (4) Response

a.

272

b.

314

c.

143

d.

722

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