English
Karnataka Board PUCPUC Science Class 11

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: - Physics

Advertisements
Advertisements

Question

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.

Options

  • 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

Solution

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
  Is there an error in this question or solution?
Chapter 11: Gravitation - MCQ [Page 224]

APPEARS IN

HC Verma Concepts of Physics Vol. 1 [English] Class 11 and 12
Chapter 11 Gravitation
MCQ | Q 8 | Page 224

RELATED QUESTIONS

State the universal law of gravitation. Name the scientist who gave this law.


The weight of an object is more at the poles than at the equator. Is it beneficial to purchase goods at equator and sell them at the pole? Does it matter whether a spring balance is used or an equal-beam balance is used?


Let V and E be the gravitational potential and gravitational field at a distance r from the centre of a uniform spherical shell. Consider the following two statements :

(A) The plot of V against r is discontinuous.
(B) The plot of E against r is discontinuous.


Three uniform spheres each having a mass M and radius a are kept in such a way that each touches the other two. Find the magnitude of the gravitational force on any of the spheres due to the other two.


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?


A tunnel is dug along a diameter of the earth. Find the force on a particle of mass m placed in the tunnel at a distance x from the centre.


The gravitational field in a region is given by \[E = \left( 2 \overrightarrow{i} + 3 \overrightarrow{j} \right) N {kg}^{- 1}\] . Show that no work is done by the gravitational field when a particle is moved on the line 3y + 2x = 5.

[Hint : If a line y = mx + c makes angle θ with the X-axis, m = tan θ.]


Distinguish between gravity and gravitation


How will the force of gravitation between two objects change if the distance between them is:
Made four times


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


What does a force do in the following case?
You twist a piece of rubber.


You can change the direction in which an object is moving by___________.


The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is _______ of the distance between them.


To project the rockets which of the following principle(s) is /(are) required?


As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would ______.


Give scientific reasons for the following:

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


Answer the following questions in reference to the figure below:

  1. Which relation is shown in the figure?
  2. What will happen if the mass of one of the objects is doubled?

Newton's universal law of gravitation applies to ______.


If three equal masses m are placed at the three vertices of an equilateral triangle of side 1/m then what force acts on a particle of mass 2m placed at the centroid?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×