Physics
General
Easy
Question
The earth (mass=
kg) revolves around the sun with angular velocity 
rad/sec sec in a circular orbit of radius 1.5
km. The force exerted by the sun on the earth is...N
- 18
- Zero
- 27
- 36
The correct answer is: 36
Related Questions to study
physics-
The figure shows elliptical orbit of a planet 
about the sun 
. the shaded area SCD is twice, the saded area SAB. If 
is the time tor the planet to move trom 
' and 
and 
is the time to move from A to B then
The figure shows elliptical orbit of a planet about the sun . the shaded area SCD is twice, the saded area SAB. If is the time tor the planet to move trom ' and and is the time to move from A to B then
physics-General
physics
correct form of gravitational law is
correct form of gravitational law is
physicsGeneral
physics
A satellite of the earth is revolving in a circular orbit with a uniform speed v. If the gravitational force suddennly disappears, the satellite will
A satellite of the earth is revolving in a circular orbit with a uniform speed v. If the gravitational force suddennly disappears, the satellite will
physicsGeneral
physics
Two sphere of mass 
and 
are situated in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now be
Two sphere of mass and are situated in air and the gravitational force between them is F. The space around the masses is now filled with liquid of specific gravity 3. The gravitational force will now be
physicsGeneral
physics
The atmosphere is held to the earth by
The atmosphere is held to the earth by
physicsGeneral
physics-
The curves for P.E. (U) K.E. (EEK) of two particle system ae shown in figure, At what points. system will be bound.
The curves for P.E. (U) K.E. (EEK) of two particle system ae shown in figure, At what points. system will be bound.
physics-General
physics-
A sphere of mass M and Radius R2 has a concentric cavity of Radius R1 as shown in figure. The force 
exerted by the shpere on a particle of mass located at a distance 
from the center of shhere varies as 
A sphere of mass M and Radius R2 has a concentric cavity of Radius R1 as shown in figure. The force exerted by the shpere on a particle of mass located at a distance from the center of shhere varies as
physics-General
physics
The gravitational force Fig between two objects does not depend on
The gravitational force Fig between two objects does not depend on
physicsGeneral
physics
Two identical solid copper spheres of radius R are placed in contact with each other. The, gravitational force between them is proportional to
Two identical solid copper spheres of radius R are placed in contact with each other. The, gravitational force between them is proportional to
physicsGeneral
physics
What is the relation of the transistor current?
What is the relation of the transistor current?
physicsGeneral
physics
Which of the following the correct relationship between two current gains 
and β in a transistor?
Which of the following the correct relationship between two current gains and β in a transistor?
physicsGeneral
physics
The current gain of a transistor is 100 . If the base current changes by 200 
, What is the change in collector current?
The current gain of a transistor is 100 . If the base current changes by 200 , What is the change in collector current?
physicsGeneral
physics-
A tank contains two different liquids which do not mix with each other as shown in figure. The lower and upper liquids are at depths 
and 
respectively. An object O is located at the bottom. When seen vertically from above, locate the position of image of O.
A tank contains two different liquids which do not mix with each other as shown in figure. The lower and upper liquids are at depths and respectively. An object O is located at the bottom. When seen vertically from above, locate the position of image of O.
physics-General
physics-
Two identical solid copper spheres of radius R are placed in contact with each other. The, gravitational force between them is proportional to
Two identical solid copper spheres of radius R are placed in contact with each other. The, gravitational force between them is proportional to
physics-General
physics-
A light ray is incident perpendicular to one face of 90° prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45° We conclude that the refractive index.....
A light ray is incident perpendicular to one face of 90° prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45° We conclude that the refractive index.....
physics-General
