Welcome to your Gravitational - 5
1.
Purpose of torsion wire in Cavendish experiment
2.
Acceleration due to gravity at depth d inside Earth is
3.
Why Cavendish experiment is difficult
4.
If Earth shrinks keeping mass same, g at surface
6.
Gravitational field at the centre of Earth is
7.
Gravitational potential at infinite distance is taken as
8.
Value of g inside Earth varies with
9.
Orbital speed of a satellite decreases when
10.
At what depth inside Earth is g half its surface value?
11.
Gravitational field lines are
12.
In Cavendish experiment, restoring torque is proportional to
13.
Value of G is same on
14.
Value of g at poles compared to equator is
15.
Gravitational force inside a solid sphere at r = 0 is
16.
Cavendish experiment helped prove
17.
Force exerted by Earth on Sun is
18.
Newton’s law of gravitation is exactly applicable for
19.
Direction of gravitational force on Earth due to Sun is
20.
If distance between masses is doubled in Cavendish experiment, force becomes
21.
In Cavendish experiment, deflection angle θ increases if
22.
If radius of Earth decreases keeping mass constant, g
23.
At centre of Earth, gravitational potential is
24.
In Cavendish experiment, gravitational force is measured using
25.
At centre of Earth, acceleration due to gravity is
26.
Acceleration due to gravity on Earth’s surface is
27.
Net gravitational force at centroid of equilateral triangle with equal masses
28.
Acceleration due to gravity at height h above Earth (h ≪ R) is
29.
Unit of gravitational constant G is
30.
At what height above Earth does g become half?
31.
Acceleration due to gravity at height h (h
32.
If gravitational constant G were doubled, gravitational force would
33.
Gravitational constant G is determined by measuring
34.
Force acting on a satellite in circular orbit is
35.
If distance between two masses is halved, force becomes
36.
If Earth rotates faster, g at equator
37.
SI unit of gravitational field intensity is
38.
Gravitational force between two equal masses m at distance r is
39.
Gravitational force inside hollow Earth is
40.
Mass of Earth is assumed concentrated at centre when calculating g for
41.
Outside Earth, g varies with distance as
42.
If Earth’s mass doubles, g becomes
43.
Variation of g with depth is linear because
44.
Gravitational force is weakest among fundamental forces because
45.
Superposition principle may fail in
