Physics question and answers for June 05, 2024
- Q of mass m is connected by string of length L to point P The system is released from rest with the pendulum bob in a horizontal position Which of the...
- Q AB is an L shaped obstacle fixed on a horizontal smooth table A ball strikes it at A gets deflected and restrikes it at B If the velocity vector before...
- Q When work is done on a body by an external force its 1 Only kinetic energy increases 2 Only potential energy increases 3 Both kinetic and potential energies may increase...
- Q The acceleration of block is 3m C 5g 8 8q Smooth 3m 2 A B 3g 2m
- Q 5 AC K e x xo li Take the value of potent FoXo 1 2e Which of the following is are CORRECT 2 The force on a particle is given...
- Q d sin 8 cos 8 g 22 Two identical balls A and B are released from the positions shown in figure They collide elastically on horizontal position MN The ratio...
- Q CHOOSE THE ONE OR 11 A ball of mass 1kg is dropped from a height of 3 2m on smooth inclined plane The coeffici 1 of restitution for the collision...
- Q a spring through 4 A block of mass m moving with speed v compue of spring constant distance x before its speed is halved What is the nolutife 2 Insioitisno...
- Q A force among many other forces is delivering power to a body of mass 1 kg at a rate of P 3t 4 Then change in kinetic energy of body...
- Q 1 Spring is oscillating with frequency 4Hz having spring constant k An identical spring is connected in series in new system as shown in figure Find new frequency W k...
- Q A block of mass m 2 kg is moving with velocity vo towards a massless unstretched spring of force constant k 10 N m Coefficient of friction between the block...
- Q A block of mass m is being pulled upon the roug inclined plane by a man delivering constant power P The coefficient of friction between the block and the inclined...
- Q A block of mass 10 kg moving in x direction with a constant speed of 10 ms 1 is subjected to a retarding force F 0 1x J m during...
- Q 1 A small body of mass m is located in a horizonta plane at point O The body accelerates uniformly and acquires horizontal velocity u then mean power developed by...
- Q A pendulum bob carries a positive charge q Another positive charge q is held at the point of support then the time period of bob is L length of the...
- Q A small bead of mass m can move on a smooth circular wire km radius R under the action of a force F directed r position r of bead from...
- Q 41 Shown in the figure if potential at point A is taken to be zero the potential at point Bis 2011M In the 1A R R of Hilt A a...
- Q An object shaped as L is placed between two parallel plane mirrors as shown In the first seven closest images how many laterally inverted images are formed 1 1 4...
- Q An open knife edge of mass M dropped from a height h on a wooden floor If knife penetrates distance s into the wood the average resistance offered by the...
- Q Which of the following statements is correct a Kinetic energy of a system can be changed without changing its momentum b Kinetic energy of a system cannot be changed without...
- Q A force F K y i x where K is a positive constant acts on a particle moving in the x y plane Starting from the origin the particle is...
- Q A small bob of mass m is tied to a fixed point O by an inextensible string of length in the vertical plane as shown Initially the string is just...
- Q by a chine that 5 A particle of mass m is delivers a constant power k watts If the particle starts from rest the force on the particle at time...
- Q 8 Water is drawn from a well in a 5 kg drum of capacity 55 L by two ropes connected to the top of the drum The linear mass density...
- Q A bomb of mass 10 kg explodes into two pieces of masses 4 kg and 6 kg If kinetic energy of 4 kg piece is 200 J Find out kinetic...
- Q A open knife edge of mass M is dropped from a height h on a wooden floor If the blade penetrates a distance S into the wood average resistance offered...
- Q A force F 31 21 4k displaces a body from a point A 8 2 3 to the point B 2 0 6 The work done is a 1 unit...
- Q A force of 50 N is applied on block which makes an angle of 30 with the smooth horizontal surface as shown in figure below Calculate the work done in...
- Q TE TUITIONS XI 26 Three forces acting on a body are shown in the figure To have the resultant force only along the y direction the magnitude of the minimum...
- Q B Which one of the following arrangements truly represent the property indicated against it A Br Cl F bond energy B Br Cl F2 electronegativity C Br Cl F oxidising...
- Q 5 Calculate the power of an engine which can maintain a speed of 50 m s for a train of mass 3 x 106 kg on a rough level track...
- Q A uniform chain of length L and mass M is lying on a smooth table and one third of its length is hanging vertically down over the edge of the...
- Q 3 A stone of mass 2 kg tie with the help of thread of length 2 m and moves in vertical circular motion The difference between tension in the thread...
- Q 38 The position time graph for a particle moving alon a straight line is shown in figure The total distan travelled by it in time t 0 to t 10...
- Q 3 The mass of a bucket full of water is 13 kg It is being pulled up from a 10 m deep well Due to a hole in the bucket...
- Q 10 A uniform chain AB of mass m and length 1 is placed with one end A at the highest point of a hemisphere of radius R Referring to the...
- Q A light spring of length 20 cm and force constant 2 N cm is placed vertically on a table A small block of mass 1 kg falls on it The...
- Q A smaller bar A resting on a smooth horizontal plane is attached by threads to a point P and by means of a weightless pulley to a weight B possessing...
- Q 3 m M 1 Zero F E 7 The bob mass m of a simple pendulum of length L is held horizontal and then released It collides elastically with a...
- Q A particle moves on a rough horizontal ground with 3 some initial velocity say Vo If of its kinetic energy 4 is lost due to friction in time to then...
- Q A small block of mass 0 5 kg is projected speed of 2 m s on a horizontal smooth floor which merges into a rough horizontal circular ring in shape...
- Q 132 A stationary object explodes into masses m and m2 They move in opposite directions with velocities V and V The ratio of kinetic energy E to kinetic energy E2...
- Q 1 A wire is stretched under a force If the wire suddenly snaps the temperature of the wire 1 Remains the same 2 Decreases 3 Increases 4 First decreases then...
- Q In the shown figure a particle of mass M 10 strikes the block of mass M with velocity vo and gets attached to it For what velocity vo in ms...
- Q 11 A 3 00 kg flowerpot is perched on a windowsill that is 8 20 m from the ground How much gravitational potential energy does the flowerpot have relative to...
- Q a hollow cube of side a and volum V There is a small chamber of volume V 4 in the cub as shown The chamber is completely filled by m...
- Q A bullet is fired from horizontal ground at some angle passes through the point 3R R 4 4 the range of the bullet Assume point of the fire to be...
- Q A massless platform is kept on a light elastic spring as shown in the figure When particle of mass 0 1 kg is dropped on the pan from a height...
- Q Find the de Broglie wavelength of electrons with kinetic energies a 10 eV b 1 0 keV c 10 keV
- Q 4 A small disc of mass m on an inclined plane of inclination with the horizontal is connected to a nail driven into the plane with the help of a...
- Q 1 A light elastic cord of force constant k and relaxed length is suspended from the ceiling A bead of mass m threaded on the cord is held motionless close...
- Q A block attached to a spring kept on a smooth surface is pulled by a constant horizontal force as shown in the figure Initially the spring is in the natural...
- Q x of a body of mass 1 kg on smooth horizontal surface as a function of time t is given by The displacement 3 X where x is in metres...
- Q Kinetic energy of a particle moving in a straight line is proportional to the time t The magnitude of force acting on the particle is 1 Directly proportional to velocity...
- Q A certain amount of water boils in 10 minutes in an electric kettle If same amount of water has to be boiled by another coil having double resistance then time...
- Q D P Q sine and W Q cose A perfect smooth sphere A of mass 2 kg is in contact with a rectangular block B of mass 4 kg and...
- Q as FA A B C 7 x 1 At point A the particle is at stable equilibrium 2 At point B the particle is at stable equilibrium 3 At point...
- Q 06 Laws of Motion 2 3 For a uniform rope of mass Mg a Stationary system T Msgx b Accelerating upwards Tx c Accelerating downwards Tx M M a Tx...
- Q A projectile is fired at 30 with momentum p neglecting friction the change in kinetic energy when it returns back to the ground will be 2 30 1 zero 3...
- Q A block strikes the free end of a horizontal spring with the other end fixed placed on a smooth surface with a speed v After compressing the spring by x...
- Q A ring of mass m 0 3 kg can slide freely on smooth vertical rod A light and inextensible string is connected to the ring and passes over a smooth...
- Q Problem 10 A 10 kw drilling machine is used to drill a bore in a small aluminium block of mass 8 0 kg How much is the rise of temperature...
- Q Three blocks with masses m 2m and 3m are connected by strings as shown in the figure After an upward force F is applied on block m the masses move...
- Q A force of 10 N is required to move a conducting loop through a non uniform magnetic field at 2 ms Variable rate of production of electrical energy in watt...
- Q Work done by internal forces on a system may be 1 Positive 2 Negative 3 Zero 4 All of these sino by A
- Q A vehicle of mass m is moving on a rough horizontal road with momentum P If the coefficient of friction between the tyres and the road be u then stopping...
- Q The blades of a wind mill sweep out a circle of area A If wind flows with velocity v perpendicular to blades of wind mill and its density is p...
- Q A uniform rod of length 1 m having mass 1 kg rests against a smooth wall at an angle of 30 with the ground Fig 1 64 Calculate the force...
- Q A body of mass 10 kg is displaced from point A 2 1 3 to point B 3 3 4 under the effect of a force of magnitude 20 N...
- Q Two blocks A and B each of mass m are connected by means of a pulley spring system on a smooth inclined plane of inclination as shown in the figure...
- Q A fixed wedge ABC is in the shape of an equilateral triangle of side Initially a chain of length 2 and mass m rests on the wedge as shown The...
- Q 3 A block of mass 2 kg initially at rest moves under the action of an applied horizontal force of 6 N on a rough horizontal surface The coefficient of...
- Q 7 A particle of mass m is driven by a machine that delivers a constant power k watts If the particle starts from rest the force on the particle at...
- Q C d 9 8 erg A body of mass 10kg is moving at a constant speed of 20 m s over a frictionless surface The workdon by the weight is...
- Q 23 An object of mass 500 g initially at rest acted upon by a variable force whose X component varies with X in the manner shown The velocities of the...
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