Gravitation (NEET Physics): Questions 1 - 5 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: 1

» Gravitation » Kepler's Laws of Planetary Motion

MCQ▾

Question

The mean distance of mars from sun is 1.524 times the distance of the earth from the sun. The period of revolution of mars around sun will be

Choices

Choice (4) Response

a.

3.88 earth year

b.

4.88 earth year

c.

2.88 earth year

d.

1.88 earth year

Question number: 2

» Gravitation » Energy

MCQ▾

Question

A projectile is fired vertically upward from the surface of earth with a velocity Equation . where Equation is the escape velocity and K < 1. Neglecting air resistance, the maximum height to which it will rise measured from the center of the earth is - (where R = radius of earth)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Gravitation » Gravitational Acceleration

MCQ▾

Question

Two planets of radii in the ratio 2: 3 are made from the materials of density in the ratio 3: 2. Then the ratio of acceleration due to gravity Equation at the surface of two planets will be,

Choices

Choice (4) Response

a.

1

b.

0.12

c.

Equation

d.

2.25

Question number: 4

» Gravitation » Energy

MCQ▾

Question

A body of mass 100 kg falls on the earth from infinity. What will be its energy on reaching the earth? Radius of the earth is 6400 km and g = 9.8 m/s 2. Air friction is negligible.

Choices

Choice (4) Response

a.

6.27 ⨯ 10 10 J

b.

6.27 ⨯ 10 8 J

c.

6.27 ⨯ 10 9 J

d.

6.27 ⨯ 10 7 J

Question number: 5

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

A satellite of mass m is revolving in a circular orbit of radius r. The relation between the angular momentum J of satellite and mass m of earth will be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In