Physics question and answers for May 24, 2024
- Q is S 7 A ball collides with an inclined plane of inclination 0 after falling through a distance h If it moves horizontally just after the impact the coefficient of...
- Q height of its n the mpact illed 8 Three blocks are initially placed as shown in figure block A has mass m and initial velocity v to the right Block...
- Q 5 There are hundred identical blocks equally spaced on a frictionless track as shown in the figure Initially all the blocks are separate Each collision is perfectly inelastic The final...
- Q 2 Two particles having mass ratio n 1 are interconnected by a light inextensible string that passes over a smooth pulley If the system is released then the acceleration of...
- Q 3 A ball of mass 50 g is dropped from a heigh h 10 m It rebounds losing 75 per cent of it kinetic energy If it remains in contact...
- Q 4 In the arrangement shown bob A on the left is pulled aside It is then released and allowed to collide with other bob B which is at rest A...
- Q 1 The centre of mass of the shaded portion of the disc is The mass is uniformly distributed in the shaded portion Lay 6 to the left of A c...
- Q A continuous flow water heater geyser has an electrical power rating 2 kW and efficienty of conversion of electrical power into heat 80 If water is flowing through the device...
- Q Two spherical bodies of masses m and 6m and radii R and 2R respectively are released in free space with initial Separation between their centrem equal to 10R If they...
- Q A carrom coin of mass 5 gram moving with speed 2 m s strikes elastically with the board wall at 45 If it remains in contact with the wall for...
- Q 21 A quarter sector of a uniform disc of radius R is shown in figure The coordinates of center of mass is 1 2 3 2R 2R 3 3 2R...
- Q t 28 3R M O If collision between sphere and particle is elastic ther find speed of sphere just after collision 1 14 12 3 u 2 4 2 m...
- Q Find the moment of inertia of this cross section of a uniform guide rail of uniform thickness and uniform surface density o 0 5 kg cm2 about its centroid 10...
- Q A light rigid rod of length 4m is connected rigidly with two identical particles each of mass m 2kg the free end of the rod is smoothly pivoted at O...
- Q A 30 kg child standing on 50 kg stationary plank which is placed on a smooth horizontal surface jumps off the plank with horizontal component of velocity 16 m s...
- Q Q A uniform rectangular thin sheet ABCD of mass M has length a and breadth b as shown in the figure If the shaded portion HBGO is cut off the...
- Q 1 A particle of mass 4 kg starts its motion from rest with a constant acceleration 1 m s In the system there is another particle of same mass which...
- Q Three bodies a ring R a solid cylinder C and a solid sphere S having same mass and same radius roll down the inclined plane without slipping They start from...
- Q 1 Three particles of masses 0 50 kg 10 kg and 1 5 kg are placed at the three corners of a right angled triangle of sides 30 cm 40...
- Q Three blocks A B and C are kept in a straight line on a frictionless horizontal surface These have masses m 2m and 3m respectively The object A moves towards...
- Q 41 In the circuit shown the potential differences V between A and B and V between C and D are 14 RRR wwwwwwww R C www 1 6iR 3iR 2...
- Q 2 A sphere of 4 cm radius is suspended within a hollow sphere of 6 cm radius The inner sphere is charged to a potential 3 e s u When...
- Q A uniform rod of mass m and length L is at rest on a smooth horizontal surface A ball of mass m moving with velocity vo hits the rod perpendicularly...
- Q 94 A boat of mass 100 kg is of mass 40 kg and 60 kg are at a distance 10m on the boat Each move distance 2m towards each other...
- Q Eour holes of radius R are cut from a thin square plate of side 4R and mass M Determine the moment of inertia of the remaining portion about Z axis...
- Q 3 50 N 4 60 N 142 A bullet of mass 200 g moving with a velocity v strikes a block of mass 1800 g at rest and remains in...
- Q Three point particles of masses 1 0 kg 1 5 kg and 2 5 kg are placed at three corners of a right angle triangle of sides 4 0 cm...
- Q 3 The electric field in a region is radially outward and at a point is given by E 250 r V m where ris the distance of the point from...
- Q A uniform solid square plate ABCD of mass m and side a is moving in x y horizontal smooth plane The velocity of centre of mass is vo 21 4...
- Q a small ball is attached to one end of a spring that has an unstrained length of 0 200 m the spring is held by the other end and the...
- Q A solid sphere of uniform density has radius equal to R It has a cavity of radius R 2 such that the centre of mass lies on the surface of...
- Q 8 A rigid ball of mass m strikes a rigid wall at 60 and gets reflected without loss of speed as shown in the figure The value of impulse imparted...
- Q 3 A force F ai 3j 6k is acting at a poin r 21 6 12k The value of o for which about origin is CBSE AIPMT 201 d 1...
- Q go round made of a ring like platform of radius R and mass M is revolving with angular speed w A person of mass M is standing on it At...
- Q A ladder of mass m and length stands against a frictionless wall with its feet on a frictionless floo If it is let go at an initial angle 8 60...
- Q cer 42 The particles attract each other and are permitted to towards each other along the line joining their mass At a particular moment of time their speeds an 2v...
- Q At the top of the trajectory of a projectile direction of its velocity and acceleration are 1 perpendicular to each other 2 parallel to each other 3 inclined to each...
- Q Two billiard balls A and B each of mass 0 05 kg moving in opposite direction with a speed of 6 m s collide and rebound with the same 1...
- Q A ball of mass 250 g moving with 20 m s strikes a vertical wall and rebounds along the same line with a velocity of 15 m s If the...
- Q A block of mass m moving at a speed of u collides with another block of mass 2m at rest The lighter block comes to rest after the collision The...
- Q Point masses of 2 kg 3 kg 5 kg and 7 kg are placed at the corners of a square ABCD respectively whose each side is 1 m long The...
- Q orm disc of mass m and radius R is pivoted at point P and is free to rotate in vertical plane The centre C of disc is initially in horizontal...
- Q c 8 9x 7 2 1 d 1 8 9 7 2 102 In a rectangle ABCD BC 2AB the moment of inertia along which axis will be A minimum...
- Q The centre of mass of a system of two uniform spherical masses of 5 kg and 35 kg with centres of them 0 7 m apart is A 0 6125...
- Q stiffness k is attached at Q Find the frequency of sm of the disc if the string does not slide over the pulley Assume Io MI of the disc about...
- Q Two blocks of mass 2kg and 3kg are connected with the massless spring of 200 N m If 2kg block is moving with a speed of 5 m s towards...
- Q Two objects of same mass slide from the same height h from two smooth inclined planes with different angles Choose INCORRECT statement s A Impulse of their weight is same...
- Q Q4 A rocket is moving in a gravity free space with a constant acceleration of 2 ms along x direction see figure The length of a chamber inside the rocket...
- Q A thin rod MN free to rotate in the vertical plane about the fixed end N is held horizontal When the end M is released the speed of this end...
- Q A bomb initially at rest explodes by it self into three equal mass fragments The velocities of two fragments are 31 2 m s and 1 4 m s The...
- Q mass is whirled in a circular path constant angular velocity and its linear velocity is V e string is now halved keeping the angular momentum same the linear velocity is...
- Q A neutron moving with velocity u collides elastically with an nucleus of mass number A If the collision is head on and the initial kinetic energy of neutron is E...
- Q From a uniform circular plate of radius R and area A a small circular portion of area A 21 is cut out at a distance 3R 4 from the centre...
- Q 6 A T shaped object with dimensions shown in the figure is lying on a smooth floor A force F is applied at the point P parallel to AB such...
- Q Q9 A thin bar of length L has a mass per unit length 1 that increases linearly with distance from one end If its total mass is M and its...
- Q In the figure shown the mass of the disc as well as that of the trolley is M The spring is ideal and has stiffness k The trolley can move...
- Q 4 Two particles of masses m and 2m has initial velocity u 21 3j m s and u2 41 3 m s These particles have constant acceleration a 4 33...
- Q the distance between a node and the next antinode is 1 7 5 2 15 3 22 5 4 30 16 A spherical shell and a solid cylinder of same...
- Q 3 8H A solenoid wound over a rectangular frame If all the linear dimensions of the frame are increased by a factor 4 0 5 H 3 and the number...
- Q When an external force is applied at the centre of mass of the system of an object then it undergoes Only translatory motion Only rotatory motion Both translatory and rotatory...
- Q A body thrown vertically up with velocity u reaches the maximum height h after T seconds Which of the following statement is correct At a height from the ground its...
- Q Two particles of masses 1 kg and 2 kg are placed at a distance of 3m Moment of inertia of the particles about an axis passing through their centre of...
- Q A metal spherical shell of mass m is filled completely with nonviscous water of mass m 2 and is rolled down an inclined plane of height h The total kinetic...
- Q A wedge of mass 3m is kept on a smooth horizontal surface A block of mass m is released from top most point as shown Angle made by velocity of...
- Q Q18 A man of mass m is standing on a plank of equal mass m resting on a smooth horizontal surface The man starts moving on the plank with speed...
- Q 9 Multiple Collisions in a Tube Inside a smooth circular tube of radius 5m a small ball A moves at speed 10 m s and strikes another ball B of...
- Q D In a typical Indian Bugghi a luxury cart drawn by horses a wooden plate is fixed on the rear on which one person can sit A bugghi of mass...
- Q 9 A man of mass M having a bag of mass m slips from the roof of a tall building of height H and starts falling vertically figure 9 E8...
- Q A railroad car of mass M is at rest on frictionless rails when a man of mass m starts moving on the car towards the engine If the car recoils...
- Q 13 A particle of mass 3m at rest decays into two particles of masses m and 2m having non zero A velocities The ratio of the de Broglie wavelengths of...
- Q A bomb of mass 3m is kept inside a closed box of mass 3m and length 4L at its centre It explodes in two parts of mass m and 2m...
- Q 4 The balloon the light rope and the monkey shown i figure 9 E7 are at rest in the air If the monkey reaches the top of the rope by...
- Q The elastic collision between two bodies A and B can be considered using the following model A and B are free to move along a common line without friction When...
- Q As shown in the figure below a rectangular block of mass M and length L is placed on a smooth table A small cube of mass m with negligible length...
- Q 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 is...
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