Physics question and answers for June 14, 2024
- Q 4 51 A particle of mass m having collides with a stationary particle of mass M deviated by an angle 2 whereas the particle M recoiled at an angle 0...
- Q Q12 A 15 g ball is shot from a spring gu whose spring has a force consta 600 Nm The spring is compressed 5 cm The greatest possible horizontal rang...
- Q A mass m is suspended by a spring of force constant k from the ceiling of a lift of mass M The lift moves up with acceleration a due to...
- Q Q4 The potential energy of an object of mass m moving in xy plane in a conservative field is given by U ax by where x and y are position...
- Q A block of mass 4kg moves on horizontal smooth surface with velocity 31 4 m s as shown in the figure The block collides with spring of force constant 100...
- Q 32 A body of mass 3 kg is under a constant force which causes a displacements in metres in it given by the 1 2 relation s t where t...
- Q 4 A pendulum of length L 15 cm is held with its string horizontal and then released The string runs into a peg a distance d below the pivot as...
- Q 3 63 A smooth rubber cord of length whose coefficients of elasticity is k is suspended by one end from the end O as shown in figure 3 131 The...
- Q move along y axis varies as shown below F y A B C D E Consider the following statements a D is neutral equilibrium position b E is stable equilibrium...
- Q Q 162 An ideal spring of unstretched length and Q 162 3rfar unstretched atas k amet fe force constant k is stretched by a small length x It is further...
- Q Following figure shows two blocks of masses m and m placed on a surface They are connected by an ideal spring of stiffness k The spring is at its natural...
- Q The cars are equipped with a coupling arrangement similar to the one on railroad cars Car 1 overtakes car 2 and they have a totally inelastic collision and become coupled...
- Q 3 A block of mass 5 0 kg is pushed against a horizontal spring with spring constant 250 N m compressing it by 0 20 m The block is released...
- Q There are two concentric conducting spherical shells The capacity of system is C when inner sphere is charged and outer is earthed and C when inner sphere is earthed and...
- Q D A spring of spring constant k is compressed by an amount of x and a mass m is just placed in contact with it and released Calculate minimum value...
- Q A block is placed on horizontal smooth surface If a force of constant magnitude F 16 N is acting towards a fixed point C as shown in the figure Then...
- Q Shown in the figure below is a block and track system All locations indicated by solid black lines are frictionless The region indicated by the tan hash is a patch...
- Q ant sed B it 3 46 A particle of mass 0 01 kg travels along a space curve with velocity given by 4i 16k m s After some time its...
- Q 3 60 Power supplied to a particle of mass 2 kg varies with time 31 2 watt Here t is in second If velocity of particle at t 0 is...
- Q Marks 4 0 0 A vertical spring mass system with lower enc of spring is fixed made to undergo small oscillations If the spring is stretched by 25cm energy stored...
- Q 22 System shown in the figure is released from rest when spring is unstretched Pulley and spring are massless and friction is absent everywhere G T wars m N 22...
- Q A light spring of force constant k is placed on a smooth horizontal surface and fixed at one end and other end is connected by a block B of mass...
- Q 21 A particle is released from a height H At certain height its kinetic energy is two times its potential energy Height and speed of particle at that instant are...
- Q 26 The force acting on a body moving along x axis varies with the position of the particle as shown in the figure The body is in stable equilibrium at...
- Q 19 Power supplied to a particle of mass 2 kg varies with 3t time as P watt Here tis in second If velocity 2 of particle at t 0 is...
- Q 10 A block of mass 250 g is kept on a vertical spring of spring constant 100 N m fixed from below The spring is now compressed to have a...
- Q 3 A block weighing 10 N travels down a smooth curved track AB joined to a rough horizontal surface figure The rough surface has a friction coefficient of 0 20...
- Q 9 A block of mass 50 kg is projected horizontally on a rough horizontal floor The coefficient of the friction between 61 block and the floor is 0 1 The...
- Q 1 A block of mass m is suspended by a light thread from an elevator The elevator is accelerating upward with uniform acceleration a The work done by tension on...
- Q 2 The graph between the resistive force F acting on a body and the distance covered by the body is shown in the figure The mass of the body is...
- Q In a race a 70 kg sprinter covers first 20 m in 5 0 s starting from rest and accelerating uniformly What is the average power the sprinter generate during...
- Q Column A 1 Force 75 N distance 5 m 2 Force 33 N distance 12 m 3 Work 1 500 Joules Force 30 N 4 Work 1 280 Joules distance...
- Q A particle is projected from infinity with a velocity of The perpendicular distance between the target and initial velocity is b The mass of the particle m experiences repulsive inverse...
- Q A body of mass 20 kg is initially at a height of 3 m above the ground It is lifted to a height of 2 m from that position Its...
- Q A frictional less track ends in a circular loop of radius R A block is released from point A on the track then block slides on the track Then find...
- Q A sphere of mass m and radius r is released from a wedge of mass 2m as show ABC is hemispherical position of radius R Impulse imparted to the system...
- Q 2 A thermally insulated rigid container contain an ide gas heated by a filament of resistance 100 22 throug a current of 1 A for 5 min then change in...
- Q v t graph of an object of mass 1 kg is shown Selec the wrong statement 20 v m s 10 10 20 30 t s a Work done on...
- Q Three balls A B and C each of mass m and same size are placed along same line on smooth horizontal surface A is given a velocity u towards B...
- Q 1 A chain consist of 10 links each of mass 50 g is lifted vertically with a constant acceleration of 4 m s2 The force of interaction between the top...
- Q eral ball of mass 1 kg is heated using a 40 W heater in a room at 30 C The temperature of the ball becomes steady at 70 C Assuming...
- Q Options 1 A small disc of mass I gm slides down a smooth hill of height 10 m from rest and gets on to a plank of mass 100 gm...
- Q 7 A simple pendulum consisting of a mass Mattached to a string of length L is released from rest at an angle a A pin is located at a distance...
- Q Two blocks each of mass m moving with speed v collide with the spring of force constant k as shown in figure The maximum compression of the spring is mom...
- Q A uniform stick with mass m and length I is initially at rest along the y axis on a frictionless table as shown in figure An identical stick oriented in...
- Q A dumbbell consists of a light rod of length r and two small masses m attached to it The dumbbell stands vertically in the corner formed by two frictionless planes...
- Q has significant 5 If a amplitude upto a factor of 1 e of original only in the period betweent 0 stot ts then t may be called the average life...
- Q One mole of a monoatomic gas is carried along process ABCDEA as shown in the diagram Find the net work done by gas p Nm f sothia PB TA 07...
- Q On a horizontal surface a 300 gram object glides 80 cm If the coefficient of kinetic friction is 0 20 how much work is required to overcome friction between the...
- Q A particle moves under the influence of the force F yi zj xk N along the edges of a unit cube edge length 1m on the path OA AB BC...
- Q Two springs of spring constants k and k are connected in series such that one end is fixed and the other is connected to a block of mass M as...
- Q The force acting on a particle constraint to move along y axis varies as shown below F 7 Consider the following statements a Point E is of stable equilibrium b...
- Q The gravitational potential difference between the surface of a planet and 10 m above is 5 J kg If the gravitational field is supposed to be uniform the work done...
- Q of distance is given as U x 6x 2x The conservative force acting on body x 1 m will be NCERT Pg 1 1 6 N 3 10 N 2...
- Q Due to a push the collar of mass mis sliding down at a speed vo on the fixed circular ring when it passes through the point A The ring is...
- Q Question 1 1 point A 2500 kg truck travelling at 72 km h slams on the brakes and skids to a stop The frictional force from the road is 7900...
- Q Work done to carry bob upto angle 60 with the vertical vary slowly from initial vertical position is Given g 10 ms 2 1 5 3 J 1 m 60...
- Q 250 gram falls from a tree through a vertical distance of 6 m and reaches the ground with a velocity 8 m s If it experiences a constant air resistance...
- Q Loss of energy between C and D A 2 25 kg block is placed at position A on the 4 10 m track path CD of the track are frictionless...
- Q 4 May 175 A small ball is given a velocity 2g smooth horizontal floor which leads to a smooth vertical circular path The ball will Q P A 71 2...
- Q A position dependent force F acting on a particle and its force position curve is shown in the figure Work do on the particle when its displacement 0 to 5...
- Q 267 Work done by the external agent in increasing the length of spring from natural length 10 cm to 10 1 cm is 20 J Work done by the agent...
- Q N acts on a elocity of the power of the 1 1 0 vertical circle netic energy 90 A particle suspended by a light inextensible thread of length is projected...
- Q A particle of mass 5 kg moving in the X Y plane has its potential energy given by U 7x 24y Joule The particle is initially at origin and has...
- Q A bob is suspended from a peg on a wall by a massless string of length L If it is given a velocity 2gL at the lowest point then angular...
- Q M with a constant downward acceleration of Then power delivered by the rope at any time t Mg t Mg 9 9 4 2 Mg t 57 A rope is...
- Q 3 30 J 131 A body of mass 5 kg at rest is dropped from the top of a 20 m tower If the body reaches the ground at 10...
- Q c kinetic energy decreases Q 33 Dimension of k m is here k is force constant a c T T d b d kinetic energy increas T 2 T 1
- Q Case 1 Read the case study given below and answer the following questions from 31 to 35 Potential energy is the energy stored within an object due to the object...
- Q v u at is applicable when an acceleration a is uniform Reason Q 26 No work is done when a the displacement is zero c the force and displacement are...
- Q mechanical energy Q 32 Work done by a conservative force is positive if a potential energy decreases c kinetic energy decreases c d b d none of these potential energy...
- Q A constant 113 N force acts on a 3 92 kg box The box initially is moving at 10 8 m s in the direction of the force and 4...
- Q 134 A ball of mass 1 kg is thrown horizontally from the top of a tall tower with velocity v 81 m s The change in gravitational potential energy of...
- Q A block of mass 1 0 kg moving on a horizontal surface with speed 2 m s enters a rough surface The retarding force F on the block is given...
- Q 62 Which of the following pair s binding energy 1 Two point masses each of mass m at distance d Nd 2 Two solid spheres each of mass m with...
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