NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2010 - 2014 of 2142

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Passage

Read the passage given below and answer the questions that follows:

The orbit of Pluto is much more eccentric than the orbits of the other planets. That is, instead of being nearly circular, the orbit is noticeably elliptical. The point in the orbit nearest to the sun is called the perihelion and the point farthest from the sun is called the aphelion.

Orbit of Pluto - perihelion and the aphelion

Orbit of Pluto - Perihelion and the Aphelion

In above figure we shows that the perihelion and the aphelion of the Pluto’s orbit.

Question number: 2010 (3 of 3 Based on Passage) Show Passage

» Gravitation » Gravitational Potential

MCQ▾

Question

As Pluto moves from the perihelion to the aphelion, the work done by gravitational pull of Sun on Pluto is

Choices

Choice (4) Response

a.

zero

b.

Depends on sense of rotation

c.

positive

d.

negative

Question number: 2011

» Rotational Motion » Moment of Inertia

MCQ▾

Question

Two discs of same thickness but of different radii are made of two different materials such that their masses are same. The materials are of densities ρ 1 and ρ 2. The ratio of the moments of inertia of these discs about the respective axes passing through their centers and perpendicular to their planes will be in,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2012

» Gravitation » Gravitational Potential

MCQ▾

Question

Two bodies of mass 10 2 kg and 10 3 kg are lying l m apart the gravitational potential at the mid-point of the line joining them is –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2013

» Rotational Motion » Moment of Inertia

MCQ▾

Question

From a disc of radius R, a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M. The moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its center of gravity is,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2014

» Rotational Motion » Moment of Inertia

MCQ▾

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.

1: 1

b.

1: 2

c.

2: 1

d.

4: 1

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