Physics question and answers for April 30, 2024
- Q A hollow sphere released at the top of a smooth incline of length and inclination 0 reaches the bottom in time to A solid sphere released at the top of...
- Q A recording disc rotates steadily at 45 rev minute on a table When a small mass of 0 02 kg is dropped gently on the disc at a distance of...
- Q Anon uniform bar of weight W and length L is suspended by two strings of negligible weight as shown in figure The angles made by the strings with the vertical...
- Q A solid sphere is rolling on a frictionless horizontal surface shown in figure with a translational velocity v m s If it is to climb the rough inclined surface then...
- Q The figure shows a metallic plate of uniform density The value of in terms of L so that the centre of mass of the system lies at the common interface...
- Q A thin uniform rod of mass m length L is rotating about an axis passing through one end of the rod At t 0 a wave pulse is generated at...
- Q A roller is made by joining together two cones at their vertices O It is kept on two rails AB and CD which are placed asymmetrically see figure with its...
- Q A cubical block of side L and mass m rests on a rough horizontal surface with coefficient of friction u A horizontal force F is applied on the block as...
- Q From a disc of radius R and mass M a circular hole of diameter R whose rim passes through the centre is cut What is the moment of inertia of...
- Q A square plate of side a has been removed from a uniform big metal square plate having mass M and side 2a as shown in figure The moment of inertia...
- Q If a street light of mass M is suspended from the end of a uniform rod of length L in different possible patterns as shown in figure then V C...
- Q A slender rod of mass M and length L 1 m is lying on the frictionless surface A particle of mass moving M 8 perpendicular to the length of the...
- Q Consider the arrangement shown m 7 5 kg m 10 kg and mass per unit length of the string is 1 5 x 10 2kg m At t 0 the...
- Q TEST FEEDBACK A non conducting ring of mass m and radius R is charged as shown The linear charge density for corresponding region shown is A It is placed on...
- Q Two particle of mass 2m and m attached to a light string as shown Complete system is rotated in a horizontal circle with constant angular velocity 2w about an axis...
- Q r at a Let I be the moment of inertia of a uniform square plate about an axis AB that passes though its centre and is parallel to two of...
- Q From a uniform square plate of side a and mass m square portion DEFG of side is removed Then the a moment of inertia of the remaining portion about the...
- Q A uniform thin rod of length and mass m is hinged at one end O and released from horizontal position as shown in figure The angular acceleration of the rod...
- Q 39 A rod of mass mand length 1 is hinged at one of its end A as shown in figure A force F is applied at a distance x from...
- Q 30 A horizontal turn table in the form of a disc of radiu r carries a gun at G and rotates with angular velocity o about a vertical axis passing...
- Q A belt of mass 2 kg is wrapped over two cylindrical wheels of small radii rolling on a horizontal rough surface Each wheel has velocity 3 m s see in...
- Q A disc of mass M and radius R is rolling with angular speed on a horizontal plane as shown The magnitude of the angular momentum of the disc about the...
- Q Find wrong statement 1 Radius of gyration depends on mass of the object as well as distribution of mass II Radius of gyration depends only on mass of the object...
- Q A sphere of mass m and radius r rolls on a horizontal plane without slipping with the speed u Now if it rolls up on a rough inclined plane the...
- Q 5 A disc of radius 0 1 m rolls without sliding on a horizontal surface with a velocity of 6 m s It then ascends a smooth continuous track as...
- Q The moment of inertia of a uniform rod of length 20 and mass m about an axis xx passing through its centre and inclined at an angle a is 1...
- Q 7 A spool of mass M and radius 2R lies on an inclined plane as shown in figure A light thread is wound around the connecting tube of the spool...
- Q 12 A disc of radius r rolls without slipping on a rough horizontal floor If velocity of its centre of mass is then VO velocity of point P as shown...
- Q 3 A ball of radius r rolls inside a hemispherical shell of radius R It is released from rest from point A as shown in figure The angular velocity of...
- Q 35 A spherical body of radius R is allowed to roll down on an incline without slipping and it reaches with speed vo at the bottom The incline is then...
- Q 15 A wheel is rolling without sliding on a horizontal surface The centre of the wheel moves with a constant speed vo Consider a point P on the rim which...
- Q 18 Four holes of radius R are cut from a thin square plate of side 4R and mass M The moment of inertia of the remaining portion about z axis...
- Q 19 A wire of mass m and length 1 is bent in the form of a quarter circle The moment of inertia of this wire about an axis passing through...
- Q Two identical billiard balls of diameter 5 cm each moving with a speed of 3 ms roll without slipping towards each other on a horizontal rectangular U shaped trough that...
- Q A wheel whose moment of inertia is 12 kg m has an initial angular velocity of 40 rad sec A constant torque of 20 N m acts on the wheel...
- Q A thin sheet cut in the shape of a parallelogram of mass 500 g is shown in the figure Each side of the parallelogram is 6 m Find the moment...
- Q Consider two tangent axes to a uniform solid hemisphere as shown Let laB and Ico be moment of inertia of hemisphere about axis AB and CD respectively Then the ratio...
- Q A uniform thin bar of mass 6m and length 27 is bent to make a regular hexagon Its moment of inertia about an axis passing through the centre of mass...
- Q BOXES ON TABLE PULLEY A system consists of three masses m m and m connected by a string passing over a pulley P The mass m hangs freely and m...
- Q 116 The density of a rod is increasing from end A to B It is easier to set in rotation by 1 Clamping at end A and applying force Fat...
- Q A small mass slides down an inclined plane of inclination with the horizontal The co efficient of friction is Ho x where x is the distance through which the mass...
- Q CAREER INSTITUTE 6 Three point masses each m are placed at the vertices of 6 an equilateral triangle of side a Moment of inertia of the system about the axis...
- Q A wheel having moment of inertia 2 kg m about its vertical axis rotates at the rate of 60 rpm about this axis The torque which can stop the wheel...
- Q 9 32 System of Particles and Rotational Motion A 3 m long ladder weighing 10 kg leans on a frictionless wall Its feet rest on floor 1 5 m from...
- Q 4 36 kg m 12 A cord of negligible mass is wound round the rim of flywheel disc with mass of 15 kg and radius of 40 cm A steady...
- Q A solid sphere is in rolling motion In rolling motion a body possesses translational kinetic energy K as well as rotational kinetic energy K simultaneously The ratio K K K...
- Q A uniform rod of length 3 m and mass 1 kg is free to rotate vertically about a fixed point A The rod is released from rest in the horizontal...
- Q A solid cylinder and a hollow cylinder both of the same mass and same external diameter are released from the same height at the same time on an inclined plane...
- Q 6 One deterrent to burglary is to leave your front porch light on all the time If your fixture contains a 60 W bulb at 120 V and your local...
- Q 3 4 5 Paragraph for Question Nos 13 to 15 Two identical billiard balls of radius 5 cm and each of mass 1Kg moving with a speed of 3 ms...
- Q Intrinsic semiconductor is electrically neutral 10 Extrinsic semiconductor having large number of current carriers would be A Positively charged B Negatively charged C Positively charged or negatively charged depending upon...
- Q Q 6 Two identical billiard balls of diameter 5 cm each moving with a speed of 3 ms roll without slipping towards each other on a horizontal rectangular U shaped...
- Q more than 10 questions first 10 attempted questions will be considered for marking 36 A uniform rod of length L and mass M is held vertical with its bottom end...
- Q 3 48 A device consists of a smooth L shaped rod located in a horizontal plane and a sleeve A of mass m attached by a weightless spring to a...
- Q A disc of radius 50 cm is projected from the ground with its plane vertical such that the velocities of the topmost point A and lowest point B are VA...
- Q S A rod of man M and length L is at rest on a smooth horizontal surface A small man m strikes at one end of rod elastically and perpendicularly...
- Q Two 4 kg blocks are attached to the ends of a 10 m light rod that can freely rotate about its center perpendicular to the length of the rod What...
- Q When a disc is rotating with angular velocity a particle situated at a distance of 4 cm jus egins to slip If the angular velocity is doubled at what distance...
- Q A uniform sphere of mass mand radius rrolls without slipping down an inclined plane inclined at an angle 53 to the horizontal What is minimum value of coefficient of friction...
- Q A uniform rod of length l is pivoted at one of its ends on a vertical shaft of negligible radius When the shaft rotates at angular speed w the rod...
- Q A rod of length L whose lower end is fixed along the horizontal plane starts to topple from the vertical position The velocity of the upper end of the rod...
- Q A rod is being rotated about an axis passing through an end and perpendicular to its length as shown in figure A bead is sliding along rod with constant speed...
- Q A sphere is rolling without slipping on two horizontal and parallel rails that are not in the same level Distance between the rails is equal to radius of the sphere...
- Q In Figure a uniform beam with a weight of 60 N and a length of 3 2 m is hinged at its lower end and a horizontal force of magnitude...
- Q serted by the sphere on the track at the disc has a light inextensible string wrapped around a groove in the rim The free end of the 38 ing is...
- Q Figure a non uniform bar is suspended at rest in a horizontal position by two massless cords One the cord makes the angle 36 9 with the vertical the other...
- Q A non uniform bar of weight Wis suspended at rest by two strings of negligible weight as shown in fig The angles made by the strings with the vertical are...
- Q A uniform rod has mass m 2 kg and length l 13 m One end of the rod is pulled with a constant velocity of vo 34 m s along...
- Q m A ring of radius a and having mass m is placed on a smooth horizontal surface Two massless rigid rods AC and BD each of length a are attached...
- Q A disc of radius R is rolling with or without slipping on a horizontal surface with instantaneous linear velocity V and instantaneous angular velocity P is a point on periphery...
- Q 3 A disc of mass M has a light thin string wrapped several times around its circumference The free end of string is 3 attached to the ceiling and the...
- Q b 4s C 2s 30 A uniform solid cylindrical roller of mass m is being pulled on horizontal surface with force F parallel to the surface applied at its centre...
- Q Consider the sphere moving on horizontal surface At some instant it has linear velocity vo and angular velocity about center Vo of mass 2R The translational velocity after the sphere...
- Q Respected pls give detailed solution with diagram of the following questio n 2 A ring of diameter 2 m oscillates as a compound pendulum about a horizontal axis passing through...
- Q 12 A semicircular disc of mass M and radius R is free to rotate about its diameter The moment of inertia of semicircular disc about a line perpendicular to its...
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