Physics question and answers for June 07, 2024
- Q In the figure shown a block A moving with velocity 10 m s on a horizontal surface collides with another block B at rest initially The coefficient of restitution 1...
- Q QTwo blocks of mass 2 Kg are connected by a massless ideal spring of spring constant K 10 N m The upper block is suspended from roof by a light...
- Q A ball of mass m with a charge q can rotate in a vertical plane at the end of a string of length in a uniform electrostatic field whose lines...
- Q Two identical blocks are resting on supports as shown Two identical bullets travelling with the same speed hit the blocks get embedded in them in very short time The blocks...
- Q Two blocks of masses m 1 kg and m2 2 kg are connected by a non deformed light spring They are lying on a rough horizontal surface The coefficient of...
- Q An object of mass 2 kg is placed at rest on a 14 frictionless horizontal surface at origin A horizontal force given by F x 9 i N acts on...
- Q 2 A current is flowing through the branch of a cube of side 1 m then choose incorrect statement 12A 72A 1 The magnetic force acting on a moving charge...
- Q of inertia 0 01 kgm about its massless cord wrapped around its rim kg mass M is attached to the end o cord The pulley can rotate about its without...
- Q An experiment is performed to determine the unknown mass of a sphere A spring loaded launcher is used to launch the sphere The launcher is set to exert a force...
- Q PHYSICS A bucket tied at the end of a 1 6 m long string is whirled in a vertical circle with constant speed What should be the minimum speed so...
- Q 15 16 Paragraph for Questions no 15 16 Figure shows a schematic view of an electrostatic analyzer It can sort out charged particles by speed and charge to mass ratio...
- Q 2 AAJ KA TOPPER A uniform rod of length L and mass M has been placed on a rough horizontal surface as shown in the figure The rod is pulled...
- Q Velocity v time t graph of a particle moving in a straight line is shown in the figure Mass of the particle 2 kg Work done by all the forces...
- Q 55 A car is moving along a straight horizontal road with a speed If the coefficient of friction between the tyres and the road is v In The shortest distance...
- Q A dumbbell constructed by affixing small identical balls each of mass m at the ends of a light rod of length 1 stands vertically on a frictionless floor touching a...
- Q A uniform metal rod is suspended from one end When it is displaced through 60 from downward vertical the change in potential energy is The further change in potential energy...
- Q In a ballistics demonstration a police officer fires a bullet of mass 40 0 g with speed 200 m s on a soft plywood of thickness 4 00 cm The...
- Q When a body moves with a constant speed alon a circle 1 no acceleration is present in the body 2 no force acts on the body 3 its velocity remains...
- Q 2 Bullets of mass 40 g each are fired from a machine gun with a velocity of 10 m s If the person firing the bullets experience an average force...
- Q The relationship between the force F and position x of a body is as shown in figure The work done in displacing the body from x 1 m to x...
- Q the in figure A spring of Consider part A 40 spring constant 400 Nm is attached at one end to a mass is released from rest while situated at a...
- Q 11 A particle is placed at the point A of a frictionless track ABC as shown in figure 8 W7 It is pushed slightly towards right Find its speed when...
- Q Use the values from PRACTICE IT to help you work this exercise Suppose the same elevator car with the same load descends at 3 00 m s What minimum power...
- Q 43 Power supplied to a particle of mass 2 kg varies with time as P 3 watt Here t in 2 seconds If velocity of particle at t 0 is...
- Q Work done in time t on a body of mass m which is accelerated from rest to a speed v in time t as a function of time t is...
- Q Two masses each of m are attached at mid point B end point C of massless rod AC which is hinged at A It is released from horizontal position as...
- Q A man is riding on a cycle with velocity 7 2 km hr up a hill having a slope 1 in 20 The total mass of the man and cycle...
- Q A uniform chain of mass m and length L is kept on a horizontal table with half of its length hanging from the edge of the table Work done in...
- Q A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table The total mass...
- Q A small disc is attached at one end of a light inextensible string that passes through a hole in a frictionless horizontal tabletop Initially the disc moves on a circle...
- Q 3 Zero A bar magnet of magnetic dipole moment 57 A m is placed in region of magnetic field B 21 31 4k tesla the magnitude of torque acting on...
- Q A block of mass 100 gm slides on a rough horizontal surface If the speed of the block decreases from 10 m s to 5 m s the thermal energy...
- Q 52 4 J of work is required to stretch a spring through 3 10 cm beyond its unstretched length The extra work required to stretch it through additional 10 cm...
- Q which is free to mo through the plank 4 36 Sphere A of mass m moving with a constant velocity u hits another stationary sphere B of the same mass...
- Q 4 26 A smooth semicircular tube AB of radius r is fixed in a vertical plane and contains a heavy flexible chain of length r and weight Wir as shown...
- Q Figure below shows two paths that may be taken by gas to go from a state A to a state C In process AB 400 J of heat is added...
- Q The bob A of a pendulum is released from 30 to the vertical hits another identical bob B of same mass at rest at bottom The collision is elastic in...
- Q Light wave is travelling along y direction If the corresponding E vector at any time is along the x axis the direction of B vector at that time is along...
- Q in airplane of mass 1 20 x 10 kg is moving at 58 0 m s The pilot then Increases the engine s thrust to 7 00 x 10 N...
- Q rzan swings on a 34 0 m long vine initially inclined at an angle of 42 0 with the vertical a What is his speed at the bottom of the...
- Q Two blocks of equal masses m are connected by a relaxed spring with a force constant k The bloc rest on a smooth horizontal table At t 0 the block...
- Q allel then iod T ithout vill energy is 1 10 J 2 20 J 4 2 J 3 200 J 21 A trolley of mass 1 kg is connected to...
- Q 31 32 ast Course A body of mass 1 kg thrown upwards with a velocity of 10 m s comes to rest momentarily after moving up by 4m The work...
- Q A bucket of water with total mass 23 kg is attached to a rope which in turn is wound around a 15 cm radius cylinder at the top of a...
- Q D A ball of mass 2 kg and another of mass 4 kg ar dropped together from a 60 feet tall building Afte a fall of 30 feet each towards...
- Q A particle is moving unidirectionally on a horizontal plane under the action of a constant power supplying energy source The displacement s time t graph that describes the motion of...
- Q The figure shows two equal positive charges each of magnitude 50 C fixed at points 3 0 m and 3 0 m respectively A charge 50 C moving along negative...
- Q A body of mass 2kg is moving with velocity 10m s towards east Another body of same mass and same velocity moving towards north collides with former and coalsces and...
- Q Q16 A body of mass 5kg is suspended by a spring balance on an inclined plane as shown in figure The spring balance measure 125 a 50 N b 25...
- Q Work in Charge Transportation A point charge q is isolated at the centre O of a hollow metal shell of inside radius a and outside radius b The shell is...
- Q The string of pendulum of length is displaced through 90 from the vertical and released Then the minimum strength of the string in order to withstand the tension as the...
- Q A deliveryman moves 10 cartons from the sidewalk along a 10 meter ramp to a loading dock which is 1 5 meters above the sidewalk If each carton has a...
- Q Three vessels A B and C of different shapes contain water upto the same height as shown in the figure P P and Pc be the pressures exerted by the...
- Q A solid cylinde inextensible light string and is placed on a rough inclined plane as shown in the figure The frictional force acting between the cylinder and the inclined plane...
- Q A projectile is fired from the surface of the earth of radius R with a velocity KVe where Ve is the escape velocity from the surface of the earth and...
- Q A body of mass 1 kg begins to move under the action of a time dependent force F 2ti 3t j N where and are unit vectors along x and...
- Q A uniform rope has mass m and length 1 It is held on a frictionless table with one sixth of its length o hanging over the edge The work done...
- Q 5 M M A body is displaced from 0m 0m to 1m 1m along the path x y by a force F x yi N The work done by this...
- Q A bullet of mass 10 g moving horizontally with a velocity of 400 ms 1 strikes a wood block of mass 2 kg which is suspended by light inextensible string...
- Q 61 A Work and energy have the same units in any given system of measurement B Work and power have the same ratio of S unit to CG S unit...
- Q D A truck moving on horizontal road with contant acceleration of 2m s2 A block of mass 2 kg kept inside truck An observer also stands at rest in the...
- Q 5 Two particles of equal mass m are connected by a spring of spring constant K kept on a smooth floor Each of the bodies are given equal speed v...
- Q 2 2 A block m 0 5 kg slides down a frictionless inclined plane 2 m long as shown in figure 2 196 It then slides on a rough horizontal...
- Q 7 A body of mass m is tied to a string to top of a trolley moving with an acceleration a Calculate the maximum angle the string will make with...
- Q If a small sphere of mass m and charge q is hung from a silk thread at an angle with the surface of a vertical charged conducting plate then for...
- Q Power of a Force Pulling a Rope Figure shows a rope resting on rough ground One end A of rope is pulled by an external force such that it moves...
- Q A drop of water of mass m 0 4 g is placed between two clean glass plates the distance between which is 0 01 cm If the force needed to...
- Q A drum of radius R and mass M rolls down without slipping along an inclined plane of angle e The frictional force 1 Dissipates energy as heat 2 Decreases the...
- Q Question37 For the given diagram mark the correct option s Given that Neglect any Friction B 0000 4 subsequent motion is 9 mA mB mv Options a for e 1...
- Q The spring has a length of 1 5 m and the 10 kg block is at rest on the incline when a force of F 100 N is applied to...
- Q A boy is holding one end of an inextensible cord supporting a block of mass m at its lower end From this block another block of mass Mis suspended with...
- Q One end of a light spring of force constant k is fixed to the ceiling The other end is fixed to a block of mass m Initially the spring is...
- Q 4 In a common emitter CE amplifier having a voltage gain G the transistor used has transconductance 0 03 mho and current gain 25 If the above transistor is replaced...
- Q A ball is projected with initial velocity 40 2 m s at an angle of 60 with horizontal as shown in figure When its velocity is making an angle of...
- Q The instantaneous angular position of a point on a rotating wheel is given by the equation e t 2t 6t rad where t is in second The magnitude of angular...
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