Physics-
General
Easy
Question
Statement - 1 -If the cylinder rolling with angular speed- w. suddenly breaks up in to two equal halves of the same radius. The angular speed of each piece becomes 2w.
Statement -2-If no extenal torque outs, the angular momentum of the system is conserved
Statement -1 is correct (true) , Statement -2 is true and Statement- 2 is correct explanation for Statement -1
- Statement -1 is true, statement -2 is true but statement- 2 is not the correct explanation four statement -1
Statement -1 is true, statement- 2 is false
Statement -2 is false, statement -2 is true
Statement -1 is correct (true) , Statement -2 is true and Statement- 2 is correct explanation for Statement -1
Statement -1 is true, statement- 2 is false
Statement -2 is false, statement -2 is true
The correct answer is: Statement -1 is correct (true) , Statement -2 is true and Statement- 2 is correct explanation for Statement -1
Related Questions to study
Physics-
Statement -1-A thin uniform rod AB of mass M and length L is hinged at one end A to the horizontal floor initially it stands vertically. It is allowed to fall freely on the floor in the vertical plane, The angular velocity of the rod when its ends B strikes the floor 
Statement -2 - The angular momentum of the rod about the hinge remains constant throughout its fall to the floor.
Statement -1-A thin uniform rod AB of mass M and length L is hinged at one end A to the horizontal floor initially it stands vertically. It is allowed to fall freely on the floor in the vertical plane, The angular velocity of the rod when its ends B strikes the floor
Statement -2 - The angular momentum of the rod about the hinge remains constant throughout its fall to the floor.
Physics-General
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Four particles each of mass ' m ' are lying symmetrically on the rim of the disc of mass M and radius R moment of inertia of this system about an axis passing through one of the particles and perpendicular to plane of disc is
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Physics-General
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Two spheres each of mass M and radius R/2 are connected with a mass less rod of length 2R as shown in figure. What will be moment of inertia of the system about an axis passing through centre of one of the spheres and perpendicular to the rod?
Two spheres each of mass M and radius R/2 are connected with a mass less rod of length 2R as shown in figure. What will be moment of inertia of the system about an axis passing through centre of one of the spheres and perpendicular to the rod?
Physics-General
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A rod of length L rotate about an axis passing through its Centre and normal to its length with an angular velocity ω. If A is the cross-section and D is the density of material of rod. Find its rotational K.E.
A rod of length L rotate about an axis passing through its Centre and normal to its length with an angular velocity ω. If A is the cross-section and D is the density of material of rod. Find its rotational K.E.
Physics-General
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Two disc one of the density 7.2 gm/cc and other of density 8.9gm/cc are of the same mass and thickness their moment of inertia are in the ratio of
Two disc one of the density 7.2 gm/cc and other of density 8.9gm/cc are of the same mass and thickness their moment of inertia are in the ratio of
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From a circular disc of radius R and mass 9M, a small disc of radius R/3 is removed from the dise. The moment of inertia of the remaining portion about an axis perpendicular to the plane of the disc and passing through O is
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Physics-General
Physics-
In a bicycle the radius of rear wheel is twice the radius of front wheel. If rF and rr are the radius, vr and vr are speed of top most points of wheel respectively, then...
In a bicycle the radius of rear wheel is twice the radius of front wheel. If rF and rr are the radius, vr and vr are speed of top most points of wheel respectively, then...
Physics-General
General
Identify the adjective that describes the nous
"I will paint the tray gray".
Identify the adjective that describes the nous
"I will paint the tray gray".
GeneralGeneral
General
Select the correct figure of speech in the below sentences.
a) He's a walking calculator
b) It's as dead as a doornail.
C) There wares attack you
d) You have egg on your face
Select the correct figure of speech in the below sentences.
a) He's a walking calculator
b) It's as dead as a doornail.
C) There wares attack you
d) You have egg on your face
GeneralGeneral
Physics-
A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then
The acceleration with which the mass falls is
A solid cylinder of mass M and R is mounted on a frictionless horizontal axle so that it can freely rotate about this axis. A string of negligible mass is wrapped round the cylinder and a body of mass m is hung from the string as shown in figure the mass is released from rest then
The acceleration with which the mass falls is
Physics-General
General
Rewrite the sentences with capital letters for places and nan
a) Canada has big cities bite toronto, montreal and vancouver
b) The nil rives is in africa.
c) Santa claw lives is the north pole
d) penguins live near the south pole
Rewrite the sentences with capital letters for places and nan
a) Canada has big cities bite toronto, montreal and vancouver
b) The nil rives is in africa.
c) Santa claw lives is the north pole
d) penguins live near the south pole
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Physics-
Tow uniform rod of equal length but different masses are rigidly joined to form L shaped body which is then pivoted as shown. If in equilibrium the body is in the shown configuration ratio M' m will be.......
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Physics-General
Physics-
A mass M is supported by a mass less string wound around a uniform cylinder of mass M and radius R as in figure. With what acceleration will the mass fall on release?
A mass M is supported by a mass less string wound around a uniform cylinder of mass M and radius R as in figure. With what acceleration will the mass fall on release?
Physics-General
General
Select the sentence with correct conman position.
Select the sentence with correct conman position.
GeneralGeneral
General
Look at the pictures, write the blends and complete the word.
(a) 
__a yon (b) 
__ess (c) 
__ee
(d) 
__idge
Look at the pictures, write the blends and complete the word.
(a) __a yon (b) __ess (c) __ee
(d) __idge
GeneralGeneral
