Physics question and answers for June 13, 2024
- Q A particle is moving on x axis has potential energy U 2 20x 5x Joules along x axis The particle is released at x 3 The maximum value of x...
- Q A ball is thrown from the top of 36 m high towe with velocity 5 m s at an angle 37 above th horizontal as shown Its horizontal range on...
- Q All springs string and pulley shown in figure are light Initially when both the springs were in their natural state the system was released from rest The maximum displacement of...
- Q 35 An almost inertia less plank AB can rotate about a stationary horizontal axle O Its end B rests on a platform where a small block of mass m is...
- Q 9 4 6 g If W is the amount of work done in forming a 39 soap bubble of volume V then amount of work in forming a bubble of...
- Q A spherical conductor of radius 2 m is charged to a potential of 120 V It is now placed insid another hollow spherical conductor of radius 6 m Calculate the...
- Q 2 Two springs are stretched by applying forces in two situations 1 A VN B F If the potential energy stored in them are UA and U then the ratio...
- Q Potential energy U as a function of r is shown below If a particle P of mass m and energy E starting from r a moves towards the origin then...
- Q 13 A particle of mass m is executing oscillations about the origin on the X axis with amplitude A Its potential energy is given as U x bx where is...
- Q 22 The variation of potential energy of harm is as shown in figure The spring constant is K 10 N m Find the value of K U Joule A 0...
- Q 3 Three particles of masses 1 kg 2 kg and 3 kg are situated at the corners of an equilateral triangle move at speed 6 ms 3 ms and 2...
- Q A 3 kg block is sliding across a horizontal surface The initial speed of the block is 4 m s but because of friction the block s speed will decrease...
- Q A Carnot s engine operates with an efficiency of 40 with its sink at 27 C By what amount should the temperature of the source be increased with an aim...
- Q 3 A person pulls on the spring stretching it 3 0 cm which requires a maximum force of F 75 N Fig 4b a Find the spring constant k for...
- Q ALLEN Adjacent figure shows the force displacement 9 fafferde fam graph of a moving body the work done in fax 0x35m forenfura displacing body from x 0 to x 35m...
- Q A truck weighing 8000 kg is moving along 30 a track with negligible friction at velocity 1 8 m s the engine turn off when it begins to rain hard...
- Q 3 287 5J 4 200 J A force of 5 N making an angle 8 with the 10 horizontal acting on an object displaces it by 0 4m along the...
- Q A man is running on horizontal road kinetic energy of a boy of half of his mass When man speeds up by 1 m s then his KE becomes equal...
- Q Energy 5 A chain is on a frictionless table with one fifth of its length hanging over the edge If the chain has length L and mass M the work...
- Q The rate of doing work by force acting on a particle moving along x axis depends on position xo particle and is equal to 2x The velocity of particl is...
- Q A bullet of mass 20 g leaves a riffle at an initial speed 100 m s and strikes a target at the same level with speed 50 m s The...
- Q 22 A particle located in one dimensional potential field a b has potential energy function U x x where a and b are positive constants The position of equilibrium corresponds...
- Q 10 A spring of force constant K is first stretched by distance a from its natural length and then further by distance b The work done in stretching the part...
- Q 52 A small sphere of radius falls from rest in a viscous liquid As a result heat is produced due to viscous force The rate of production of heat when...
- Q A girl of mass 65 2 kg is travelling at a speed of 18 2 m s at the top of a 21 5 m high roller coaster loop a...
- Q Consider a drop of rain water having mass 1g falling from a height of 1 km It hits the ground with a speed of 50 m s Take g constant...
- Q 9 A He ion is at rest and is in ground state A neutron with initial kinetic energy K collides head on with the He ion For which value of...
- Q 3 2g 5 3g 4 30 8 A particle is displaced from 1 2 m to 0 0 m along the path y 2x Work done by a force F...
- Q 1 2 3 5 3 3J 4 2 5 J Maximum acceleration of block A after its collision with block B as shown in figure has magnitude assume collision to...
- Q 2 10 The potential energy function in one dimension is given as shown in figure If total energy of the particle is 5J Then in the region from x to...
- Q A sphere of mass m is tied to end of a string of length and rotated through the other end along a horizontal circular path with speed v The work...
- Q A mass m slips along the wall of a semispherical surface of radius R The velocity at the bottom of the surface is MP PMT 1993 m 1 Rg V...
- Q A body starts moving from rest in straight line under a constant power source Its displacement in time t is proportional to 1 t 2 2 t 3 t 2...
- Q Potential energy U related to coordinates is given by U 3 x y Work was done when the particle is going from 0 0 2 3 is 1 15 J...
- Q The velocity given to the block of mass m 7 is gl to rotate it in a circle of radius I Calculate the height h where the block leaves the...
- Q lying at rest on a horizontal surface The wedge has a cavity which is the portion of a sphere of radius R A small sphere of mass m is released...
- Q estions 1 A body of mass 1 kg falls freely from a height of 100 m on a re platform of mass 3 kg which is mounted on a spring...
- Q In the Bohr s model of hydrogen like atom the force between the nucleus and the electrons is modified as e 47 0 F Option 3 Ta ao Where is...
- Q A circular current loop of magnetic moment M Is in an arbitrary orientation in an external magnetic field B The work done to rotate the loop by 30 about an...
- Q 3 1 05 4 0 15 An engine of a motor pulls up a 20 kg mass slowly through a height of 10 min 10 s The power consumption of...
- Q A block of mass m is dropped onto a spring of constant k from a height h The second end of the spring is attached to a second block of...
- Q A B 00000000 3 K C i The spring between ceiling A is cut ii The string inextensible between A and B is cut iii The spring between B C...
- Q 3 ML T A2 T 4 M L T2A T 19 A particle moves along the x axis from x 0 to x 5 m under the influence of a...
- Q 0 Two ideal helical springs have spring constants K 20 N m and K 40 N m respectively If they have been pulled by same force and potential energy stored...
- Q 13 A particle of mass m is moving with a velocity v and another particle of mass m is moving with a velocity V Both of them have the same...
- Q A body of mass 0 5 kg travels in a straight line with velocity v ax 2 where a 5 m s The work done by the net force during...
- Q 5 A mass M slides on a 45 smooth inclined plane of height H as shown The mass M moves downwards strikes the ground and sticks to it Masses of...
- Q 8 A uniform chain of length and mass moverhangs a smooth table with its two third part lying on the table Find the kinetic energy of the chain as it...
- Q The 300 kg bar B originally at rest is being towed over a series of small rollers Compute the force in the cable when t 5 sec if the motor...
- Q The magnitude of the resistive force on a cruising plane is directly proportional to v2 where v is the planes velocity The power expended by the plane is P when...
- Q 7 Two parallel plate capacitors A and B of capacitance 1 F and 5 F are charged separately to the same potential of 100 V Now the positive plate of...
- Q 4 D 2 and 3 A weight is hung freely from the end of a spring A boy then slowly pushes the weight upwards until the spring becomes slack The...
- Q 2 moles of monatomic gas at temperature 27 C is mixed with 3 moles of diatomic gas at temperatur 127 C then temperature of mixture is approximately 1 98 2...
- Q 5 A small disc is projected on a horizontal floor with a speed u Coefficient of friction between the disc and the floor varies according to equation u Ho kx...
- Q Two beads of mass m are positioned at the top of a frictionless hoop of mass M and radius R which stands vertically on ground The beads are now given...
- Q 3 A force F 10 0 50 x acts on a particle in the x direction where F is in Newton and x in metre Find the work done by...
- Q The binding energy per nucleon for C12 is 7 68 MeV and that for C13 is 7 47 MeV What is the energy required to remove a neutron from C13...
- Q ustration 20 A body falling on the ground from a height of 10 m rebounds to a height 2 5 m calculate the i percentage loss in K E ii...
- Q A particle is moved from 0 0 to a a under a force F 31 4 from two paths Path 1 is OP and path 2 is OQP Let W1...
- Q A particle of mass m is moving on a circular path under the action of a radially inward acting conservative force F the particle is r is the radius of...
- Q e potenital energy U in joule of a particle of mass 2 kg moving in X Y plane follows the law 2x 4y where x y are the co ordinates...
- Q The system of the wedge and the block connected by a massless spring as shown in the figure is released with the spring in its natural length Friction is ab...
- Q A block of mass m sliding down an incline at constant speed is initially at a height h above the ground as shown in the figure above The coefficient of...
- Q Water in a bucket is whirled in a vertical circle with a string attached to it The water does not fall down even when the bucket is inverted at the...
- Q 3 69 A particle is suspended vertically from a point inextensible massless string of length L as shown in figure 3 132 A vertical line AB is at a distance...
- Q coast the 3 45 The resistance to motion of an automobile depends on road friction which is almost independent of speed and on air ame drag which is proportional to...
- Q 3 17 Show that the height h to which a man of mass m can jump is given approximately by 1 2g m h 2 W 4SP 3 where P...
- Q 2 A massless string of length 21 connects two hockey pucks that lie on frictionless ice A constant horizontal force F is applied to the midpoint of the string perpendicular...
- Q following graphs represents the above situation E 4 28 ALLEN k A mmmm m x 0 0 O 0 m B 9 The system is released from rest when spring...
- Q 312 2 ower supplied to a particle of mass 2 kg varies with time as P 3 ere t is in seconds If velocity of particle at t 0 is...
- Q A disc of mass M rotates freely about a fixed horizontal axis through its centre A thin cotton pad is fixed to its rim which can absorb water The mass...
- Q Question 2 A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm How much further will it penetrate before coming to the rest assuming...
- Q 72 A small block slides without friction down an inclined plane starting from rest Let S be the distance travelled from time t n 1 to t n is Then...
- Q a Given a vector field F 2xyi x 3y z j y 2z k i Determine whether if F is conservative or not 3 mark Find the potential function of...
- Q Two men of masses m and m hold on the opposite ends of a rope passing over a frictionless pulley The man m climbs up the rope with an acceleration...
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