Physics
General
Easy
Question
The atmosphere is held to the earth by
- clouds
- Gravity
- Winds
- None of the above
The correct answer is: Gravity
Related Questions to study
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
physics-
A ray falls on a prism ABC(AB=BC) and travels as shown in the figure. The minimum refractive, index of the prism material should be.
A ray falls on a prism ABC(AB=BC) and travels as shown in the figure. The minimum refractive, index of the prism material should be.
physics-General
physics-
Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?
Two parallel light rays are incident at one surface of a prism of refractive index 1.5 as shown in figure. What is the angle between the rays as they emerge ?
physics-General
Maths-
is decreasing in
We should know the formulas of differentiation. And, we should know the condition for increasing and decreasing function.
is decreasing in
Maths-General
We should know the formulas of differentiation. And, we should know the condition for increasing and decreasing function.
Maths-
The interval of increase of the function 
is
For such questions, we should know different formulas of differentiation.
The interval of increase of the function is
Maths-General
For such questions, we should know different formulas of differentiation.
physics-
In experiment of the potentiometer wire 
of length 100 cm has a resistance of 10
, It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance. A Source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?
In experiment of the potentiometer wire of length 100 cm has a resistance of 10, It is connected in series with a resistance R and a cell of emf 2 volts and of negligible internal resistance. A Source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?
physics-General
