Gravitation Test

Result

Gravitation Test - 42

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Weekly Quiz Competition

Question 1
4 / -1

According to kepler, the period of revolution of a planet (T) and its mean distance from the sun (r) are related by the equation

A

B

C

D

Solution
Question 2
4 / -1

A satellite of mass m is circulating around the earth with constant angular velocity. If radius of the orbit is R_o and mass of earth M , the angular momentum about the centre of earth is

A

B

C

D

Solution
Question 3
4 / -1

The earth E moves in an elliptical orbit with the sun s at one of the foci as shown in figure. Its speed of motion will be maximum at a point ..........

A
C

B
A

C
B

D
D

Solution
Question 4
4 / -1

The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun.

A
2

B
3

C
4

D
5

Solution
Question 5
4 / -1

The earth revolves round the sun in one year. If distance between then becomes double the new period will be .......... years

A
0.5

B

C
4

D
8

Solution
Question 6
4 / -1

A
6

B
12

C
60

D
112

Solution
Question 7
4 / -1

The period of moon’s rotation around the earth is nearly 29 days. If moon’s mass were 2 fold its present value and all other things remained unchanged the period of moons’s rotation would be nearly .....days

A

B

C

D
29
Question 8
4 / -1

A

B

C

D

Solution
Question 9
4 / -1

The radius of orbit of a planet is two times that of earth. The time period of planet is.........years.

A
4.2

B
2.8

C
5.6

D
8.4

Solution
Question 10
4 / -1

If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to

A

B
r

C

D

Solution