Physics question and answers for June 12, 2024
- Q 0 A block of mass m is moved slowly from position 1 to position 2 by applying a tangential forc F of variable magnitude The spring has negligible mass and...
- Q System shown in the figure is released from rest Pulley and spring are massless and the friction is absent everywhere The speed of 5kg block when 2kg block leaves the...
- Q which a body of radius R so that 2016 1 circle of radius 20 The heart of a man pumps 5 litres of blood through t arteries per minute at...
- Q A uniform rope suspended between two level nails A and B assume a curved shape ABC as shown in the figure The midpoint C of the rope is pulled vertically...
- Q The potential energy U in Joule of a particle of mass 1kg moving in x y plane obeys the law U 3x 4y where x y are the co ordinate...
- Q 5 Find the speed in m s of mass m when it reaches O Initially the mass was at rest and all contacts are frictionless Initially D 4m x 3m...
- Q A force F y x z i 3xy 5z j 4zk is applied on a particle The work done by the force when the particle moves from the point 0...
- Q city 0 on re be 4 89 A ball moving transitionally collides elastically with another stationary ball of the same mass At the moment of impact the angle between the...
- Q SolveLancer Test A person wants to raise 0 45 m of water through a height of 50 m with the help of a water pump Find the input power drawn...
- Q ball released from a certain height falls in the influence of gravity rikes the ground and repeatedly rebounds elastically During a time terval t 8 s from the instant it...
- Q Two balls are dropped from the top of a cliff at a time interval At 2 s The first ball hits the ground rebounds elastically reversing direction nstantly without losing...
- Q on a body moving along X axis 48 The force acting varies with the position of the particle as shown in the figure The body is in stable equilibrium at...
- Q 32 A force F k yi xj where k is a positive constant acts on a particle moving in the xy plane Starting from the origin the particle is taken...
- Q An electron m 9 x kg e of energy 10 v is circulating at right angle to a uniform magnetic field The speed of the electron is 10 e m...
- Q 32 The gravitational field in a region is g given by F 10 N i 1 kg What will be work done by an external agent to slowly shift a...
- Q discharge through a resistor by closing the key at the instant t 0 At the instant t In4 s the reading of the ammeter falls half the initial value The...
- Q Av A quantity X is given by A Ay where n is coefficient of viscosity of a fluid A is area Av is change and Ay is change in height...
- Q View in English A particle collides elastically with two moving walls one by one as shown on a horizontal plane Find the final speed of the particle after two collisica...
- Q 2 In the figure a simple pendulum is released from rest in the horizontal position OA and falls in a vertical plane under the influence of gravity If it strikes...
- Q A homogenous chain of linear density 0 02 kg m hangs from two poles located at x a The equation of the curve formed by the chain is ex b...
- Q 27 The angular amplitude of a simple pendulum is 00 The maximum tension in its string will be a mg 1 0 c mg 1 02 now witam b mg...
- Q In law of conservation of energy during free fall is mechanical energy constant at every single point during free fall I know that if w e take position A B...
- Q 160 If a stone is projected vertically upward from the ground with a speed of 10 m s then it s g 10 m s 1 Potential energy will be...
- Q 12 Two similar springs P and Q have spring constants kp and ko such that kp ko They are stretched first by the same amount case a then by the...
- Q A rigid body moves a distance of 10 m along a straight line under the action of a force of 5N If the work done by this force on the...
- Q The length of a rectangular plate is measured by a meter scale and is found to be 10 0 cm Its width is measured by Vernier callipers as 1 00...
- Q 5 The mass of a body measured by a physical balance in a lift at rest is found to be m If the lift is going up with an acceleration...
- Q Two blocks of masses m 1kg and m 2kg are connected by a spring of constant k 100 N m and placed over a plank as shown The coefficient of...
- Q A 1 Kg slider moves along the smooth semi circular wire in a vertical plane as shown The spring constant is 2000N m and underformed length of 6 cm Distance...
- Q A car of mass 1000 kg moves on rough road where road friction is 10 percent of its weight and air friction is 2 percent of its weight To keep...
- Q One end of a spring of negligible unstretched length and spring constant k is fixed at the origin 0 0 A point particle of mass m carrying a positive charge...
- Q Fig shows a circular surface and a parabolodial surface It is placed in a uniform electric field of magnitude E such that the circular surface is oriented at right angles...
- Q given by U kx for x 0 and U 0 for x 20 If total mechanical energy of the particle is E its speed at x 1 Zero 2E is...
- Q An ideal spring with spring constant k is hung from the ceiling and a block of mass M is attached to its lower end The mass is released with the...
- Q A small mass m is placed and released from the vertical portion of a quarter circular arc as shown in figure As it slides the acceleration of the mass M...
- Q En escalator is used to move 5 people 60 kg each per minute from the first floor of a department store to the second floor 20 m bove Neglecting friction...
- Q i With the increase in the weight of an object the pressure a increases b decreases c is not affected d none of these ii One Pascal is the pressure...
- Q concern similar situations 14 A golf ball having a mass of 50g and a momentum of 5kg m s approaches a stationary bowling ball having a mass of 7kg The...
- Q e where e is the coefficient of restitution then A particle of mass m collides head on with a stationary particle of mass m2 If m m1 will return back...
- Q A chain of mass m length is suspended from a point O Now the midpoint P of the chain is also taken slowly put at point O Find the work...
- Q A sphere A of mass 2kg moving with velocity Vo collide with bob of mass 1kg as shown in the figure value of tension at which string of pendulum break...
- Q A lift motor has to move a fully loaded lift 6m between floors in 8 5s The lift has a mass of 1900kg ignore friction a What is the work...
- Q A particle is projected with a velocity 20 m s from bottom of inclined smooth fixed plane of inclinatic 300 and height 10 m If the maximum height in m...
- Q The diagram shows three arrangement circular loops centered on vertical axes carrying identical currents in the direct indicated Rank the arrangements accordin the magnitude of the magnetic field at midpoints...
- Q A particle of mass M initially at rest is split into 1 1 1 three parts of masses in the ratio of The 3 1 V 2 7 4 4...
- Q Two springs of force constants K and K respectively are connected to a mass m as shown The frequency of oscillation of the mass is f if both K and...
- Q The diagram shows an elevator moving 1 1 up with a constant velocity The work done by the elevator is zero Elevator negative none of the above positive
- Q An object of mass 5 kg is projected with a velocity of 20 m s at an angle of 60 to the horizontal At the highest point of its path...
- Q A pump ejects 12000 kg of water at speed of 4 m s in 40 second Find the average rate at which the pump is working 12000 kg si 4...
- Q A molecule of a substance has electric dipole moment of 29 Cm A mole of this substance is polarised by applying strong electric field of magnitudes 107 Vm 1 The...
- Q The circuit shown in figure has resistance R 20 2 R 302 At what value of Ro will the thermal power P generated in it be practically independent of small...
- Q Which of the following statements are correct Somerto a Centre of mass of a body always coincides with the centre of gravity of the body b Central of mass of...
- Q A massless spring of spring constant k initially in its natural length has two ends P and Q as shown in the figure End Q is being pulled by person...
- Q When a spring is stretched by 2 cm its potential energy is U If the spring is stretched by 10 cm The potential energy stored in it will be Question...
- Q A variable horizontal force F 25t acts on a block of mass 10kg kept on al rough horizontal surface Co efficient of static and kinetic friction are H 0 6...
- Q 5 2 points A spring has a natural length of 3 m It takes 10 N of force to stretch the spring to a total length of 5 m How...
- Q OPTIONS CLEAR SELECTION MARK FOR REVIEW A Only in conservative field OB Only in non conservative field As the positive work done by conservative force
- Q A uniform rope of linear mass density dand length is hanging from the edge of a table The work done in pulling the rope on to the table is OPTIONS...
- Q A block of mass m moving at speed v compresses a horizontal mounted spring through a distance d before its speed becomes zero The spring constant of the spring is...
- Q roblem 5 Find the work done by the force F direction 6yi 6x j along one loop of the curve r sin 90 in the positiv
- Q Two springs have their force constants k and k and they are stretched to same extension If k k work done is OPTIONS CLEAR SELECTION O A O B MARK...
- Q A body of mass 2 kg is projected vertically up with velocity of 20 m s If the energy spent in over coming air resistance is 100 J the maximum...
- Q Heater 1 takes 10 minutes to increase temperature of liquid A of mass 2kg by 20 C when connected with 200 V supply Heater 2 takes 20 minutes to increase...
- Q A block of mass m moving with velocity vo on smooth horizontal surface strikes with a spring fixed in vertical wall as shown in the figure If maximum compression in...
- Q A ball released from a height of 20 m hits the ground and rebound to a height of 16 m The coefficient of restitution of the collision will be OPTIONS...
- Q A man weighing 60 kg climbs up a staircase with 20 kg weight on his head The staircase has 20 steps each being 15 cm high If he takes 10...
- Q A particle of mass m released from top position on one side of a smooth semicircular surface of radius r in the vertical plane Maximum power generated by gravity is...
- Q A body of mass 10 kg is raised from certain depth If work done in raising it by 10 m is 1600 J its velocity at this position will be...
- Q When a spring is compressed by a distance x the potential energy is U When it is further compressed by a distance 2x the potential energy is U The ratio...
- Q A motor pump lifts water from an average depth of 10 m at the rate of 5 kg per second If the water is coming out of the pump with...
- Q A car stops to slide in 10 m During this process the force on the car due to road is 200 N opposite to the motion The work done by...
- Q A transistor is connected in common emitter configuration supply is 8 V and voltage drop across a resistor of 800 Q in collector circuit is 0 5 V If the...
- Q g 20 A weight of 200 kg is repeatedly dropped freely from a height of 10 m on the head of a pole of mass 50 kg to K push...
- Q Figure shows a block of mass m projected with velocity vo towards a wedge Consider all the surfaces to be smooth Block does not have sufficient energy to negotiate over...
- Q A B D A 0 5 kg block slides from the point A on a horizontal track with an initial speed 3 m s towards a weightless horizontal spring of...
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