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Question-1 A round disc of moment of inertia I₂ about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I₁ rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs is _____.

(A)	(B) ω
(C)	(D)

Question-2
A wheel of bicycle is rollling without slipping on a level road. The velocity of the centre of mass is v_cm, then true statement is

(A) The velocity of point A is 2v_CM and velocity of point B is zero	(B)The velocity of point A is zero and velocity of point B is 2v_CM
(C)The velocity of point A is 2vCM and velocity of point B is -v_CM	(D)The velocities of both A and B are v_CM

Question-3
A spherical ball rolls on a table without slipping. Then the fraction of its total energy associated with rotation is

(A) ²/₅	(B) 5/₇
(C) ³/₅	(D) ³/₇

Question-4 A particle of mass M is revolving along a circle of radius R and another particle of mass m is revolving in a circle of radius r. If time periods of both particles are same, then the ratio of their angular velocities is

(A) 1	(B)^R/_r
(C)^r/_R	(D)

Question-5 A particle of mass m = 5 kg is moving with a uniform speed v = 3 √2 in the XOY plane along the line Y = X + 4. The magnitude of the angular momentum of the particle about the origin is

(A) 60 unit	(B)40 √2 unit
(C)Zero	(D)7.5 unit

Question-6
In a rectangle ABCD ( BC = 2AB). Through which axis the moment of inertia is minimum

(A) BC	(B)BD
(C)HF	(D)EG

Question-7 A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Four objects each of mass m, are kept gently to the opposite ends of two perpendicular diameters of the ring. The angular velocity of the ring will be

(A)	(B)
(C)	(D)

Question-8
The angular momentum of a body with mass ( m) moment of inertia ( I ) and angular velocity ( ω ) rad/s is equal to ____.

(A) I_ω	(B) I_ω2
(C) ^I/_ω2	(D) ^I/_ω

Question-9
A solid homogenous sphere of mass M and radius R is moving on a rough horizontal surface, partially rolling and partially sliding during this kind of motion of the sphere ?

(A) Total Kinetic energy is conserved	(B) The angular momentum of the sphere about the point of contact with the plane is conserved
(C) Only the rotational kinetic energy about the centre of mass is conserved	(D) Angular momentum about the centre of mass is conserved

Question-10
Two bodies of mass 1 kg and 3 kg have position vectors respectively. The centre of mass of this system has a position vector

(A)	(B)
(C)	(D)

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Plus 1 Biology Science

CBSE

Practice in Related Chapters
Units and Measurements
Motion in a Straight Line
Laws of Motion
Mechanical Properties of Solids
Motion in a Plane
Waves
Gravitation
Thermodynamics
Thermal Properties of Matter
Work,Energy and Power
Kinetic Theory
System of Particles and Rotational Motion
Oscillations
Mechanical Properties of Fluids

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