हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

Inside a Uniform Spherical Shell - Physics

Advertisements
Advertisements

प्रश्न

Inside a uniform spherical shell
(a) the gravitational potential is zero
(b) the gravitational field is zero
(c) the gravitational potential is same everywhere
(d) the gravitational field is same everywhere

टिप्पणी लिखिए

उत्तर

(b) the gravitational field is zero
(c) the gravitational potential is same everywhere
(d) the gravitational field is same everywhere

Inside a uniform spherical shell, the gravitational field is the same everywhere and is equal to zero. The gravitational potential has a constant value inside a uniform spherical shell.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Gravitation - MCQ [पृष्ठ २२५]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 1 [English] Class 11 and 12
अध्याय 11 Gravitation
MCQ | Q 2 | पृष्ठ २२५

संबंधित प्रश्न

Answer the following:

You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?


Choose the correct alternative:

Acceleration due to gravity increases/decreases with increasing depth. (assume the earth to be a sphere of uniform density).


Choose the correct alternative:

Acceleration due to gravity is independent of mass of the earth/mass of the body.


State two applications of universal law of gravitation.


Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?


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


Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.


Two concentric spherical shells have masses M1, M2 and radii R1, R2 (R1 < R2). What is the force exerted by this system on a particle of mass m1 if it is placed at a distance (R1+ R2)/2 from the centre?


Explain the following:

People often shake the branches of a tree for getting down its fruits.


Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.


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.


Define one Newton. How much maximum acceleration can it produce in a mass of 1 kg?


How will the force of gravitation between two objects change if the distance between them is:
Doubled


A ball is thrown up with a speed of 4.9 ms-1.
Calculate the maximum height it would gain before it begins to fall.


State the law of gravitation. Why is it called universal?


State Newton's law of gravitation. What is the difference between:
g and G?


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


Different points in earth are at slightly different distances from the sun and hence experience different forces due to gravitation. For a rigid body, we know that if various forces act at various points in it, the resultant motion is as if a net force acts on the c.m. (centre of mass) causing translation and a net torque at the c.m. causing rotation around an axis through the c.m. For the earth-sun system (approximating the earth as a uniform density sphere).


Particles of masses 2M, m and M are respectively at points A, B and C with AB = ½ (BC). m is much-much smaller than M and at time t = 0, they are all at rest (Figure). At subsequent times before any collision takes place ______.


Give scientific reasons for the following:

Newton's gravitational law is the universal law of gravitation.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×