# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 2007 - 2010 of 2247

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## Question number: 2007

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MCQ▾

### Question

Two rings of the same radius and mass are placed such that their centers are at a common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the center and perpendicular to the plane of one of the rings is (mass of the ring = m and radius = r)

### Choices

Choice (4) Response

a.

b.

c.

d.

2

## Question number: 2008

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MCQ▾

### Question

A thin wire of length L and uniform linear mass density ρ is bent into a circular loop with center at O as shown in figure. The moment of inertia of the loop about the axis XX’ is

### Choices

Choice (4) Response

a.

b.

c.

d.

## 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.

## Question number: 2009 (1 of 3 Based on Passage) Show Passage

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MCQ▾

### Question

At perihelion, the gravitational potential energy of Pluto in its orbit has

### Choices

Choice (4) Response

a.

Value which depends on sense of rotation

b.

The same value as at every other point in the orbit

c.

Its minimum value

d.

Its maximum value

## Question number: 2010 (2 of 3 Based on Passage) Show Passage

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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.

negative

c.

Depends on sense of rotation

d.

positive

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