मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

P Let V and E Represent the Gravitational Potential and Field at a Distance R from the Centre of a Uniform Solid Sphere. Consider the Two Statements:

Advertisements
Advertisements

प्रश्न

Let V and E represent the gravitational potential and field at a distance r from the centre of a uniform solid sphere. Consider the two statements:
(A) the plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.

पर्याय

  • Both A and B are correct.

  • A is correct but B is wrong.

  • B is correct but A is wrong.

  • Both A and B are wrong.

MCQ
Advertisements

उत्तर

Both A and B are wrong.

Both the plots (i.e., V against r and E against r) are continuous curves for a uniform solid sphere.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Gravitation - MCQ [पृष्ठ २२४]

APPEARS IN

एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
पाठ 11 Gravitation
MCQ | Q 8 | पृष्ठ २२४

संबंधित प्रश्‍न

How does the force of gravitation between two objects change when the distance between them is reduced to half?


What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m).


What happens to the force between two objects, if the distance between the objects is doubled and tripled?


Can we apply Newton’s third law to the gravitational force ? Explain your answer.


Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces ? Why don’t the two objects in a room move towards each other due to this force ?


Consider a planet moving in an elliptical orbit round the sun. The work done on the planet by the gravitational force of the sun
(a) is zero in any small part of the orbit
(b) is zero in some parts of the orbit
(c) is zero in one complete revolution
(d) is zero in no part of the motion.


Two spherical balls of mass 10 kg each are placed 10 cm apart. Find the gravitational force of attraction between them.


A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2, find: the initial velocity of the ball.


A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find : 
the final velocity of the ball on reaching the ground .


A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find : 
the total time of journey of the ball .


A ball is thrown up with a speed of 4.9 ms-1.
Prove that the time of ascent is equal to the time of descent.


Gravity is another kind of ________. It exerts all through the ________. The Sun's gravity keeps the ___________ in their orbits. Gravity can only be felt with very large ________.


State the universal law of gravitation and derive its mathematical expression.


Three uniform spheres, each having mass m and radius r, are kept in such a way that each touches the other two. The magnitude of the gravitational force on any sphere due to the other two is


Ocean tides on Earth are mainly caused by ______.


The acceleration of the Moon towards the Earth is approximately ______.


A hollow spherical shell of uniform density exerts what gravitational force on a point mass placed inside it?


For an object outside a uniform solid sphere, from where is the sphere's mass considered to act?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×