Physics question and answers for June 10, 2024
- Q When a spring is compressed or 1 point stretched beyond its natural position by applying some force work is done on it Its elastic potential energy O O O increases...
- Q A particle of mass m is kept on a wedge of mass M as shown in the figure system is released from rest Horizontal part AB of wedge is rough...
- Q P79 A heavy body of mass m hangs on a flexible thread in a railway carriage which moves at speed to on a train safety test track as shown in...
- Q A ladder 2 5 m long and of weight 150 N has its centre of gravity 1 m from its bottom A weight of 40 N is attached to the...
- Q D A B C energy is conserved Four possible forms of the potential energy of the particle are given unit mass is moving along the x axis under the influence...
- Q A mass M is supported by a massless string wound round uniform cylinder of mass M and radius R On releasing the mass from rest it will fall with acceleration...
- Q The given plot shows the variation of U the potential energy of interaction between two particles with the distance separating them r B D E C 1 B and D...
- Q A person standing near the edge of the top of a building throws two balls A and B The ball A is thrown vertically downward and the ball B is...
- Q Velocity time graph of a particle of mass 2 kg moving in a straight line is a shown in figure Work done by all the forces on the particle from...
- Q 12 Force acting on a particle is 21 31 N Work done by this force is zero when a particle is moved on the line 3y kx 5 Here value...
- Q Blocks of mass 20kg and 5kg are connected by a light string as shown Coefficient of friction between block A and fixed inclined is 0 1 Find the minimum distance...
- Q A system of two paint buckets connected by a lightweight rope is released from rest with the 12 0 kg bucket 2 50 m above the floor as shown in...
- Q A household watches T V for about 2 0 hours total per day Their T V uses 400 Watts when it is plugged in What is the cost of 1...
- Q Potential energy and kinetic energy of a two particle system under imaginary force field are shown by curves KE and PE respectively in figure This system is bound at 1...
- Q A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of 0 5 m s What is the height of the plane of...
- Q 1 A 10 kilogram ball rolls down a stair case from a 20 m second floor and reached the ground after 1 sec a Solve for kinetic energy at 2...
- Q d zero mB c zero mB 17 The work done in moving a dipole from its most stable to most unstable position in a 0 09 T uniform magnetic field...
- Q In the figure shown the hollow tube of mass M is free to move without friction in the horizontal direction supported by two fixed vertical ring attached to the roof...
- Q 21 A body of mass 2 kg is moved from a point A to a point B by an external agent in a conservative force field If the velocity of...
- Q 4 Calculate the work done in twisting a steel wire of diameter 2mm and length 50 through 45 Rigidity modulus of the steel is 8 x 10 N m SECTION...
- Q 13 An object of mass m slides down a hill of height h of certain arbitrary shape and after travelling a horizontal path stops because of friction The friction coefficient...
- Q 1 Kinetic energy of a particle moving in a straight line varies with time t as K 4t2 The force acting on the particle 1 is constant 2 is increasing...
- Q A given object takes n times as much time to slide down a 45 rough incline as it takes to slide down a perfectly smooth 450 incline The coefficient of...
- Q 22 15 J energy is paid by a person to pull an object of mass 3 kg from depth h in empty well 40 energy is wasted due to friction...
- Q LEN Target JEE Main Advanced 2021 SAMPLE PAPER 1 Paper 1 A uniform rod of mass m and length L is held at one of its ends such that the...
- Q 7 A body is moved from rest along a straight line by a machine delivering constant power The ratio of displacement and velocity s v varies with time t as...
- Q 0 72 mgH mgH 0 28 mgH A uniform rectangular parallelopiped of mass m and with sides l 2l and 4l is placed in turn on each c its three...
- Q 7 As shown in figure a sphere of simple pendulum having mass m releases from position A becomes steady after a collision with a sphere having mass m 2m at...
- Q When a body moves with an increasing speed alo a horizontal circle then 1 No work is done on body 2 Work done on the body is positive 3 Work...
- Q Two masses of equal mass m 2 points 0 1 mg are connected by a spring of constant 25 N m Compute the two normal mode frequencies 2 marks E...
- Q 3 2850 J 5 The standard Gibb s energy change for a gaseous reaction at 27C is X Kcal If equilibrium constant for a reaction is 100 and R is...
- Q A satellite of mass m is circulating around the earth with constant angular velocity If radius of the orbit is R and mass of the earth M the ratio of...
- Q Two bodies having masses m and m are velocities v and v collide and form a composite system it m v m v 0 the m m velocity of composite...
- Q A particle is moving on the circular path of the radius R with centripetal acceleration a k Rt Then the correct relation showing power P delivered by net force versus...
- Q A 3 0 kg mass is released from rest at point A of a circular frictionless track of radius 0 40 m as shown im the figure The mass slides...
- Q A smooth sphere of mass M moving with velocity u directly collides elastically with another sphere of mass m at rest After collision their final velocities are V and v...
- Q A block of mass m initially at rest is dropped from a heighth on to a spring of force constant k The maximum compression in the spring is x then...
- Q Questions 23 and 24 are based on the following physical situation Ends of three light identical rods each of length 1 are connected to a light pivot that enables them...
- Q Which of the following statements is true about a particle moving freely in a three dimensional space where potential energy is 5J a Particle cannot have arbitrary speed b Force...
- Q small putty of mass m 1 kg and speed vo 4 m s strikes a dumbbell placed on a smooth table as shown in figure Putty moving in the plane...
- Q other cases 13 A particle is moved along a path AB BC CD DE EF FA as shown in figure in presence of a force P ayt 2xxj N where...
- Q A particle is moved along a path AB BC CD DE EF FA as shown in figure in presence of a force F ay 2xxj N where x and y...
- Q For what minimum value of m will the block of mass m just leave contact with the surface blution Let extension in the spring be then m gx kx 2...
- Q Engine is used to move a mass of 0 8 kg starting from rest a distance of 2 m in a straight line along a frictionless flat surface Engine exerts...
- Q A waterfall is 100 meters high If one fourth of the potential energy of the falling water gets converted to heat the rise in temperature of water will be 0...
- Q Example 6 6 A block of mass m 1 kg moving on a horizontal surface with speed v 2 ms enters a rough patch ranging from x 0 10 m...
- Q 11 Potential energy is defined 1 Only in conservative fields 2 As the negative of work done by conservative forces 3 As the negative of workdone by external forces when...
- Q A particle crosses the topmost point C of a vertical circle with critical speed then the ratio of velocities at points A B and C is Question Type Single Correct...
- Q 9 A body moves a distance of 10 m along a straight line under the action of a force 5 N If the work done is 25 joule the angle...
- Q Example 6 3 A cyclist comes to a skidding stop in 10 m During this process the force on the cycle due to the road is 200 N and is...
- Q SolveLancer Test Consider the four statements and then select the correct statement from options given below i The energy lost due to damping force is compensated by the work done...
- Q An atomic power nuclear reactor can deliver 300 MW The energy released due to fission of each nucleus of uranium atom U238 is 170 MeV The number of uranium atoms...
- Q A block of mass m is allowed to slide down a fixed smooth inclined plane of inclination and slope length L What is the power developed by the force of...
- Q A block of mass 20 kg is being brought down by a chain If block acquires a speed of 2 m s in dropping down 2 m Find work done...
- Q A woman pushes a box on railway platform which has rough surface She applies a force of 20 N over a distance of 5 m thereafter gets tired and applied...
- Q 246 Two objects have the masses of 15 kg and 10 kg respectively The 15 kg object is placed on the surface of Earth to 4 m height and the...
- Q A block of mass m 1 kg is moving on horizontal surface with speed of 4 m s 1 enters a rough patch ranging from x 0 1 m to...
- Q Figure shows two holes in a wide tank containing a liquid column The water streams coming out of these holes strike the ground at the same point The height of...
- Q VI A particle of mass m moves under the action of a central force whose potential is V r kmr k 0 then a for what values of energy and...
- Q A parallel plate capacitor has plate area A and separation d It is charged to a potential difference Vo The charging battery is disconnected and the plates are pulled apart...
- Q A rubber bullet is fired at the stationary 3 6 kg block suspended from a spring Calculate a The block s speed after the bullet bounces off it 4 b...
- Q 7 A body initially at rest breaks up into two pieces of masses 2 M and 3 M respectively together having a total kinetic energy E The piece of mass...
- Q The mass of the bob of a simple pendulum is m and it is raised to a maximum height h The work done by gravity in moving it from one...
- Q The combined frictional and air resistance on a bicyclist has the force F aV where V is his velocit and a 4 newton sec m At maximum effort the cyclist...
- Q In figure the smooth pulley is massless friction is absent everywhere If the blocks are released from rest with the connecting cord taut what is their total kinetic energy in...
- Q 3 The 50 lb package starts from rest slides down the smooth ramp and is stopped by the spring as shown in Fig Q3 Note spring force F KAx and...
- Q A light plank AB can rotated about a horizontal axis provided by a fixed hinged O it rests on a platform at the end B A small block of mass...
- Q A MW me Smooth a 2 3 m b 11 14 m c 7 23 m d 76 34 m X Wall 0 60 u 12 m s m 4...
- Q The K E of a person is just half of K E of a boy whose mass is just half of that person If person increases its speed by 1...
- Q A particle of mass m and charge q is given velocity v as shown in the figure What minimum distance it ca 2KqQ ravel before stopping for the first time...
- Q Two identical masses placed on a smooth horizontal surface are connected by a light string of length 2 A constant force F starts acting on the system in the direction...
- Q speed 3 A particle moving with kinetic energy 3J makes an elastic head on collision with a stationary particle which has twice its mass During the impact A the minimum...
- Q 3 22 A body of mass m was slowly hauled up the hill by a force F which at each point was directed along a tangent to the trajectory as...
- Q 3 6 Consider a spring that does not obey Hooks s law One end of the spring is held fixed When it is stretched or compressed by an amount x...
- Q 1 5 3 12 A small ball is suspended from a point O by a thread of length 1 A nail is driven into the wall at a distance of...
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