A thin uniform disc (see figure) of mas...

A thin uniform disc (see figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass for point P on its axis to infinity is

`(2GM)/(7R)(4sqrt2-5)`

`-(2GM)/(7R)(4sqrt2-5)`

`(GM)/(4R)`

`(2GM)/(5R)(sqrt(2)-1)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

JEE MOCK TEST 5
NTA MOCK TESTS|Exercise PHYSICS|25 Videos
JEE MOCK TEST 7
NTA MOCK TESTS|Exercise PHYSICS - Subjective Numerical|5 Videos

Similar Questions

Explore conceptually related problems

The energy required to move a body of mass m from an orbit of radius 3R to 4R is

For a uniform ring of mass M and radius R at its centre

A thin annular disc of outer radius R and R/2 inner radius has charge Q uniformly distributed over its surface. The disc rotates about its axis with a constant angular velocity omega . Choose the correct option(s):

A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity omega . Another disc of same dimensions but of mass (1)/(4) M is placed gently on the first disc co-axially. The angular velocity of the system is

A uniform disc of mass M and radius R is pivoted about the horizontal axis through its centre C A point mass m is glued to the disc at its rim, as shown in figure. If the system is released from rest, find the angular velocity of the disc when m reaches the bottom point B.

Consider a thin spherical shell of uniform density of mass M and radius R :

A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis perpendicular to the plane at an angular velocity omega . Another disc of mass M / 3 but same radius is placed gently on the first disc coaxially . the angular velocity of the system now is

NTA MOCK TESTS-JEE MOCK TEST 6-PHYSICS

A neutron travelling with a velocity v and kinetic energy E collides p...
Text Solution
|
A lead bullet strikes a target with velocity of 480 m/s. if the bullet...
Text Solution
|
Two beams of light having intensities I and 4I interfere to produce a ...
Text Solution
|
A thin spherical shell of radius R is cut into two equal halves and th...
Text Solution
|
A point source of light is placed at a distance h below the surface of...
Text Solution
|
An ideal gas expands isothermally from volume V(1) to V(2) and is then...
Text Solution
|
One end of a copper rod of uniform cross section and length 1.5 m is k...
Text Solution
|
A coil having N turns is would tightly in the form of a spiral with in...
Text Solution
|
A thin uniform disc (see figure) of mass M has outer radius 4R and in...
Text Solution
|
Two uniformaly charged nonconducting spheres, each of radius R,are fix...
Text Solution
|
The binding energy per nucleon of deuterium and helium nuclei are 1.1 ...
Text Solution
|
A closed tube filled with water is rotating uniformly in a horizontal ...
Text Solution
|
The velocity - time graph of a particle of mass 10 kg is shown in the ...
Text Solution
|
The maximum and the minimum equivalent resistance obtained by combinin...
Text Solution
|
A simple pendulum has time period T(1) The point of suspension is now ...
Text Solution
|
What is the energy stored in the capacitor between terminals a and b o...
Text Solution
|
A solid sphere made out of metal having a bulk modulus of 2xx10^(11)"M...
Text Solution
|
The toy-top (initially at rest) shown in the figure, has a moment of ...
Text Solution
|
An open pipe is suddenly closed at one end with the result that the fr...
Text Solution
|
The figure below shown a block of mass 15 kg, kept on a rough inclined...
Text Solution
|