Physics question and answers for September 13, 2024
- Q A body is at rest at x 0 At t 0 it starts moving in the positive x direction with a constant acceleration At the same instant another body passes...
- Q Mark the correct statements about the friction between two bodies a static friction is always greater than the kinetic friction b coefficient of static friction is always greater than the...
- Q Two cars leave one after the other and travel with an acceleration of 4 m s2 Two minutes after the departure of the first the distance between the car becomes...
- Q A circular coil of n turns is wound on a wooden disc of radius a The disc is fixed rigidly to a light rod of length as shown figure The...
- Q 5 A car is moving on a straight road The velocity the car varies with time as shown in the figure Initially at t 0 the car was at x...
- Q 1 91 m 2 182 m 3 293 m 4 111 m A particle located at x 0 at time t 0 starts moving along the positive x direction with...
- Q 0 0 A charge Q is placed at one of the corner then flux passing through each non adjacent face to that corner Q will be 48 Two charge Q...
- Q a 3 b 2 c 6 d 3 2 A wooden piece floats half submerged in a tub of water If the system is transferred to a lift ascending with...
- Q 6 A square surface of side L metre is in the plane of the paper A uniform electric field E volt m also in the plane of the paper is...
- Q on each other with their like 1 2s 2 2 3s 3 2 3 s The materials suitable for making electromagnets should have 1 high retentivity and high coercivity 2...
- Q A is fixed point at a height above a perfect inelastic smooth horizontal plane A light inextensible string of length has c end attached to A and other to a...
- Q city of a rocket with time The time of burning of fuel from the graph is v m s 1000 0 A 10 110 120 B 2 120 e t...
- Q A fisherman hooks an old log of wood of weight 12 N and volume 1000 cm He pulls the log half way out of water The tension in the string...
- Q A particle is thrown vectically up with an initial velocity 9 m s from the surface of earth take g 10 m s The time in s taken by the...
- Q 1 R w 2x A charge Q is uniformly distributed over the surface of non condcting disc of radius R The disc rotates about an axis perpendicular to its plane...
- Q A bar magnet of magnetic moment M and moment of inetria I is freely suspended such that the magnetic axial line is in the direction of magnetic meridian If the...
- Q Hence flux through plane surface 15 An electric dipole moment P is lying along a uniform electric field E The work done in rotating the dipole by 90 is AIPMT...
- Q A converging lens of focal length 15 cm and a converging mirror of focal length 20 cm are placed with their principal axes coinciding A point source S is placed...
- Q A beaker filled with water is at rest in a car that accelerates to the right with an acceleration 5m s A simple pendulum of length 1 5 has a...
- Q 3 h h h 4 h 2h 3h A particle of unit mass undergoes one dimensional motion such that its velocity varies according to v x 3x 2 where and...
- Q A cube of ice floats partly in water and partly in K oil Fig 1 Find the ratio of the volume of ice immersed in water to that in K...
- Q 12 A thin conducting ring of radius R is given a charge Q The electric field at the centre 0 of the ring due to the charge on the part...
- Q The position x of a particle with respect to time t along x axis is given by x 9t t where x is in metre and t in second What...
- Q 3d The new value of the 1 2 F 2 F 3 4 7 2F 3 The length of a magnet is large compared to its width and breadth The...
- Q 1 1 m s 27 m s The motion of a particle along a straight line is described by equation x 8 12 t t where x is in metre...
- Q 07 S 1 S A ball is thrown vertically upwards Which of the following plots represents the distance time graph of the ball during its flight if the air resistance...
- Q 29 30 A current loop ABCD is held fixed on the plane of the paper as shown in the figure The arcs BC radius b and radius a of the...
- Q A charge particle is moving along electric field as shown in figure What is horizontal displacement of the charge particle when it descends a distance of y Given Q m...
- Q X 11 1 1 4 9 2 1 2 4 3 1 3 5 A point initially at rest moves along x axis Its acceleration varies with time as a...
- Q 1 2 ms 2 4 ms A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 ms 2 The fuel is finished in 1 mi...
- Q Two pieces of metal when immersed in a liquid have equal upthrust acting on them then a Both pieces must have equal weights b Both pieces must have equal densities...
- Q In your laboratory you trace the path of light rays through a glass slab for different values of angle of incidence i and in each case measure the values of...
- Q A current flows in an infinitely long wire with cross section in the form of a semicircular ring of radius R The magnitude of the magnetic induction along its axis...
- Q from the centre is 54 T What will be its va 4 2 150 HT 3 125 HT 5F 250 HT Two long conductors separated by a distance d carry...
- Q 1 6 m 2 4 m 3 A bus is moving with a speed of 10 ms on a straight road A scooterist wishes to overtake the bus in 100...
- Q will q 2 5 q 3 3 q A thin circular disk of radius R is uniformly charged with density o 0 per unit area The disk rotates about its...
- Q A divergent lens has a focal length of 20 cm At what distance should an object of height 4 cm from the optical centre of the lens be placed so...
- Q cm Assuming it to be uniform the retardation will be 2 10 x 10 m s 4 15 x 10 m s 3 12 x 10 m s 4 14...
- Q A magnetic needle is kept in a non uniform magnetic field It experiences 1 a torque but not a force 2 neither a force nor a torque 3 a force...
- Q 3 curved path of electron is more curved than that of prot 4 path of proton is more curved 2 com If a current is passed through a spring then...
- Q The resistance between the terminal points A and B of the given infinitely long circuit will be B 3 1 1 3 1 3 2 3 192 www www 192...
- Q Preeti reached the metro station and found that the escalator was not working She walked up the stationary escalator in time t On other days if she remains stationary on...
- Q A particle moving along x axis has acceleration f at time t given by f f 1 7 where f and T are constants The particle at t 0 has...
- Q 1 15 m 2 10 m A particle moves along a straight line OX At a time t in seconds the distance x in metres of the particle from O...
- Q 1 expand 2 compress Wires 1 and 2 carrying currents i and i respectively are inclined at an angle 0 to each other What is the force on a small...
- Q A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds What should be the speed of the throw so that...
- Q Two sources of emf 6 V and internal resistance 392 20 are connected to an external resistance R as shown If potential difference across battery A is zero then value...
- Q 21 d 2nd Relative permittivity and permeability of a material are e and respectively Which of the following values of these quantities are allowed for a diamagnetic material AIEEE 2008...
- Q 1 s 2s 2 s 3s 3 s 4s 4 S A ball is dropped from a high rise platform at t 0 starting from rest After 6 seconds another...
- Q 4 31 B Speeds of two identical cars are u are 4u at a specific instant The ratio of the respective distances in which the two cars are stopped in...
- Q the particle moves with a constant acceleration A ball is thrown vertically upwards with a velocity of 30 m s If the acceleration due to gravity 10 m s what...
- Q 1 I m s 2 5 m s 3 7 m s A particle after starting from rest experiences constant acceleration for 20 sec If it covers a distances in...
- Q 4 the magnetic field at all points inside the pipe is the same but not zero A charged particle with charge q enters a region of constant uniform and mutually...
- Q Figure shows the position of a particle moving on the x axis as a function of time 10 w 6 1 the particle has come to rest 6 times 2...
- Q 3ft 3T A deflection magetometer is adjusted in the usual way When a magnet is introduced the deflection observed is 8 and the period of oscillation of the needle in...
- Q A rectangular coil of length 0 12m and width 0 1m having 50 turns of wire is suspended vertically in a uniform magnetic field of stength 0 2 Weber m...
- Q 1 7 8 m 2 78 m 3 15 6 m Two bodies are thrown vertically upward with the same initial velocity of 98 m s but 4 sec apart...
- Q Mark the correct statement 1 A solid conducting sphere holds more charge than a hollow conducting sphere of the same radius 2 Two equipotential surfaces may intersect 3 When a...
- Q The following figures show some velocity V versus time t curves But only some of these can be realised in practice These are hhh n In ii iv 2 only...
- Q A man standing on the edge of a cliff throws a stone straight up with initial speed u and then throws anothe stone straight down with same initial speed u...
- Q 1 56 km hour 20 km hour 50 km hour 4 48 km hour A particle moves along a circle with a uniform speed v After it has made an...
- Q A 500W Carnot engine operates between constant temperature reservoirs at 100 C and 60 0 C What is the rate at which energy is a taken in by the engine...
- Q A ball is thrown upwards it takes 4 s 1 30 ms 2 10 ms 1 3 40 ms 4 20 ms If relation between distance and time is s...
- Q Four charges q q q and q are placed at the corner of square of side a as shown in the figure The net electric potential at the centre 1...
- Q 4 9 1 J 1 4 55 J 1 15 J 2 2 3 J A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic...
- Q 2R A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field What should be the energy of an a particle...
- Q The linear charge density of the semicircular ring on both side is same in magnitude The electric field intensity at centre O is along T 1 F 3 j AY...
- Q A very long hollow metallic pipe is held vertical A small bar magnet with its N pole pointing downwards is allowed to fall through it After a lapse of some...
- Q A stone is dropped from the top of a tower and it strikes with 3 km hr against the ground Another stone is thrown vertically downwards from the same top...
- Q R d At a point A on the earth s surface the angle of dip 8 25 At a point B on the earth s surface the angle of dip...
- Q Three charges and q are placed at 2 the corner of an equilateral triangle of side a as shown in the figure The net electric dipole moment of the system...
- Q The initial velocity of a particle is 10 m sec and its retardation is 2 m sec The distance covered in the fifth second of the motion will be 1...
- Q A rocket is projected vertically upwards and its time velocity graph is shown in the figure The maximum height attained by the rocket is dea culoration after 20 sece 1000...
- Q 3 directed along PO 4 directed perpendicular to the plane of paper A current carrying loop in the form of a right angle isosceles triangle ABC is placed in a...
- Q A truck travelling due to North at 20 m s turns East and travels at the same speed The change in its velocity 1 20 2 m s North East...
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