# Gravitation (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 70 - 74 of 84

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

## Question number: 70

» Gravitation » Gravitational Acceleration

MCQ▾

### Question

What would be the angular speed of earth, so that bodies lying on equator may experience weightlessness? (g = 10 m/s 2 and radius of earth = 6400 km)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 71

» Gravitation » Universal Law of Gravitation

Assertion-Reason▾

### Assertion (Ꭺ)

Gravitational force between two particles is negligibly small compared to the electrical force.

### Reason (Ꭱ)

The electrical force is experienced by charged particles only.

### Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

## Question number: 72

» Gravitation » Gravitational Potential

MCQ▾

### Question

Two bodies of mass 10 4 kg and 10 5 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.

0

c.

d.

## Question number: 73

» Gravitation » Gravitational Acceleration

MCQ▾

### Question

If the radius of the earth were to shrink by 25 % its mass remaining the same, the acceleration due to gravity on the earth’s surface would be given as-

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 74

» Gravitation » Universal Law of Gravitation

MCQ▾

### Question

Two concentric shells of uniform density having masses M 1 and M 2 are situated as shown in the figure. The force on the particle of mass m when it is located at r = b is

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page