Gravitation Test

Result

Gravitation Test - 23

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Weekly Quiz Competition

Question 1
4 / -1

A body weight 500 N on the surface of the earth. How much would it weigh half way below the surface of the earth ?

A
125 N

B
250 N

C
500 N

D
1000 N

Solution
Question 2
4 / -1

At what height from the ground will the value of \'g\' be the same as that in 10 km deep mine below the surface of earth ?

A
20 km

B
10 km

C
15 km

D
5 km

Solution
Question 3
4 / -1

A person will get more quantity of matter in kg-wt. at

A
Poles

B
At latitude of 60^o

C
Equator

D
Satellite
Question 4
4 / -1

The mass of the moon is 7.34 × 10²² kg and the radius is 1.74 × 10⁶ m. The value of gravitation force will be

A
1.45 N/kg

B
1.55 N/kg

C
1.75 N/kg

D
1.62 N/kg

Solution
Question 5
4 / -1

If density of earth increased 4 times and its radius became half of what it is, our weight will

A
Be four times its present value

B
Be doubled

C
Remain same

D
Be halved

Solution
Question 6
4 / -1

The acceleration due to gravity near the surface of a planet of radius R and density d is proportional to

A
d/R²

B
dR²

C
dR

D
d/R

Solution
Question 7
4 / -1

If both the mass and the radius of the earth decrease by 1%, the value of the acceleration due to gravity will

A
Decrease by 1%

B
Increase by 1%

C
Increase by 2%

D
Remain unchanged

Solution
Question 8
4 / -1

The acceleration of a body due to the attraction of the earth (radius R) at a distance 2R from the surface of the earth is (g = Acceleration due to gravity at the surface of the earth)

A
g/9

B
g/3

C
g/4

D
g

Solution
Question 9
4 / -1

The height vertically above the earth\'s surface at which the acceleration due to gravity becomes 1% of its value at the surface is (R is the radius of the earth)

A
8 R

B
9 R

C
10 R

D
20 R

Solution
Question 10
4 / -1

A rocket is launched with velocity 10 km/s. If radius of earth is R, then maximum height attained by it will be

A
2R

B
3R

C
4R

D
5R

Solution