Physics question and answers for June 24, 2024
- Q The force F acting on a particle of mass m is 39 indicated by the force time graph shown below The change in momentum of the particle over the time...
- Q 1 A body released from height h takes time t to reach the ground After time t 2 its height from the ground is h 3h h 3 h A...
- Q and m3 are connected to massless strings as shown on a frictionless table They are pulled with a force T3 40N If m m T 6kg and m3 4kg the...
- Q ree point charges lie in the x y plane as shown in the diagram below 91 65 5 and is located at the origin 42 and located at m ar...
- Q Two satellites are in different circular orbits around a planet with speeds in ratio 1 2 One satellite does an amount of work on the other satellite resulting in both...
- Q 2 A vertical U tube is completely filled with a liquid of density p The inner cross section area of each of the vertical arms of the U tube is...
- Q If the 16 kg ball has a velocity of 3 m s when it is at the position A along the vertical path determine the tension in the cord and...
- Q A 01 24 An electron a proton an a particle and a hydrogen atom are moving with the same kinetic energy the associated de Broglie wavelength will be longest for...
- Q In the figure shown the masses of each of the pulley disc is m They were at rest All the threads are light and inextensible Now the thread is cut...
- Q Latin A phonon with wave vector gets absorbed on collision with an electron of wave vector k The electron is considered free and its energy is much larger than that...
- Q Calculate the minimum kinetic energy that the neutron should have in order to induce the reaction 0 6 n He C in which C is left in an excited state...
- Q The amplitude of upper and lower side bands of A M wave where a carrier signal with frequency 11 21 MHz peak voltage 15 V is amplitude modulated by a...
- Q 6 A particle of mass 2 kg is moving along x axis at time t Its position is given as x t2 The work done by the force acting on...
- Q Two concave refracting surfaces of equal radii of curvature face each other in air as shown in figure A point object O is placed midway between the centre and one...
- Q A metal is heated in a furnace where a sensor is kept above the metal surface to read the power radiated P by the metal The sensor has a scale...
- Q Three students S S2 and S3 perform an experiment for determining the acceleration due to gravity g using a simple pendulum They use different lengths of pendulum and record time...
- Q In the below figure shown H 0 25 10 kg 15 kg ongaper smooth Find the maximum value of F below which blocks move together 1 235 3 F 425...
- Q ctron mass A small concentration of minority carriers is injected into a homogeneous semiconductor held at 300K An electric field of 30 V cm is applied across a distance of...
- Q A Plane mirror is placed on the other side of a convex lens having a focal length of 12 cm A distinct image is formed in front of the lens...
- Q One mole of a diatomic ideal gas is taken through a cyclic process starting from point A The process A B is an adiabatic compression B C is isobaric expansion...
- Q Chapter 21 Electric Current and Direct Current Circuits 1 Given C 2 5 F C 4 5 F C 3 3 F and C 1 5 F what is the...
- Q All surfaces shown in figure are frictionless pulley and strings are light Pulley P can move frictionlessly with a smooth light collar c Block A and B have mass m...
- Q A particle of mass m is moving along a circle of radius r At some instant its speed is v and it is gaining speed at a uniform rate a...
- Q 14 A hollow cylinder and a solid cylinder having different mass diameter are released from rest simultaneously from the of an inclined plane Which will reach the bottom first a...
- Q A magnet of length 14 cm and magnetic u is broken into two parts of length 6 cm and 8 cm They are put at right angle to each other...
- Q For an inelastic collision the kinetic energy loss is the following 1 mm upp 1 e Happ 2 m m KE Lass where e coefficient of restitution v V u...
- Q Which of the following is correct about a SHM along a straight line ONO No Ratio of acceleration to velocity is constant Ratio of acceleration to potential energy is constant...
- Q 10V 43 Calculate the Norton resistance for the following circuit if 5 ohm is the load resistance 3 ohm O 10 ohm O 11 ohm 6 ohm 10 ohm www...
- Q A man pulls a loaded trolley of mass 70 kg along a horizontal surface at constant velocity as shown in Fig 2 39 The coefficient of kinetic friction between l...
- Q Railway tracks are banked at the curves so that ONO the train may not fall down inwards the weight of the train may be reduced the necessary centripetal force to...
- Q In a horizontal spring mass system mass m is released after being displaced towards right by J some distance t 0 on a friction less surface The phase angle of...
- Q partic A uniform magnetic field of magnitude 1 T exists in region y 0 is along k direction as shown A particle of charge 1 C is projected from point...
- Q 3 Tom and Jerry are placed at a distance of 32 cm Between them a convex lens is placed having a focal length of 15 cm in such a way...
- Q 2 The angle of inclination of an inclined plane is 60 coefficient of friction between 10 kg body and its surface is 0 2 the acceleration of the body down...
- Q Three monochromatic 12 42nm 6 21nm each other in front of a converging lens such that equal powers from the three equal to 1mW each fall on a converging lens...
- Q The angles which the vector A 31 61 2k 5 makes with the cordinate axis 1 cos 1 2 cos 3 cos 1 4 None of these COS cos cos...
- Q 26 In a uniform electric field if a charge is fired in a direction different from the line of electric field then the trajectory of the charge will be a...
- Q Moment of inertia of a uniform hexagonal plate about an axis LL is T as shown in the figur a If the moment of inertia about axis XX of an...
- Q In the given figure if i 3 sin wt and i2 4 cos wt then i3 is i Question Type Single Correct Type 1 2 3 5 sin wt 53...
- Q 41 Two charges of 25 x 10 9 coulomb and 25 10 coulomb are placed 6 m apart Find the electric field intensity ratio at points 4 m from the...
- Q 14 A bullet of mass 50 g moving horizontally with a velocity of 400 m s strikes to a block of mass 20 kg placed on a smooth horizontal surface...
- Q A hollow conducting cylinder has an inner radius of a and an outer radius of b and carries a current I along the positive z direction Find H everywhere Use...
- Q Find out the magnitude of resultant vector of 7 4N and 3N force 1 7 N 3 5 N W 4N 45 45 S 2 6 N 4 10 N...
- Q Q3 The effective resistance for the below circuit is UT O 252 1 6 Q 2 422 2 802 5 6 Q 152 252 152 U
- Q 3 tan 4 tan A B If A 31 21 and B 21 31 k then find 3 unit vector along A B 1 3 i j k 3 i...
- Q A coil having area A is placed in a magnetic field which changes from Bo to 4B in t seconds as shown in the figure The induced emf will be...
- Q 16 Two uniform discs A and B of equal masses and different radii rA and TB are mounted on fixed horizontal axles passing through their centres On each of the...
- Q Example 2 Boron naturally occurs as a mixtu of boron 10 5 protons 5 neutrons an boron 11 5 protons 6 neutrons isotope The percentage abundance of B 10 is...
- Q An ideal choke draws a current of 8 A when connected to an AC supply of 100 V 50 Hz A pure resistor draws a current of 10 A when...
- Q A horizontal force of 49 N is just able to move a block of wood weighing 10 kg on a rough horizontal surface Calculate the coefficient of friction g 9...
- Q The coefficient of static friction between contact surfaces of two bodies is 1 The contact surfaces of one body support the other till the inclination is less than 1 30...
- Q What is the angle between A and the resultant of 2 A B and A B 1 0 3 tan 1 B 2 tan 4 tan 1 B A B...
- Q Consider a wooden ring kept on a horizontal plane A bar magnet is held above the ring with its length along the axis of the ring If the magnet is...
- Q A body of mass 5kg is taken up an inclined plane of length 10m and height 5m and then released to slide down to the bottom If the coefficient of...
- Q R www V If switch is closed 1 v increases 2 Both V and R www minimum R www V 2 suonon and v decreases V increases S 3 Both...
- Q 5 Two identical uniform rod each of mass m and length joined perpendicular to each other An axis passes through junction and in the plane of rods Then M I...
- Q If A B and C are vectors having a unit magnitude 4 If A B C 0 then A B B C C A will be 1 1 2 3...
- Q A coil has an inductance of joined in series with a resistance of 22092 When an alternating e m f of 220 V at 50 cps is applied to it...
- Q NURTURE PHASE I TO MII INTERNAL TEST 06 23 09 2020 If the coefficient of friction is 3 the angle of
- Q The equivalent resistance between A and B as shown in the given circuit is 692 wwwww 402 www 692 30 50 40 60 B
- Q 2 A vertical U tube of uniform cross section contains water in both the arms A 10 cm glycerine column R D 1 2 is added to one of the...
- Q 6 94 Particles of mass m and energy E move from the left to the potential barrier shown in Fig 6 3 Find a the reflection coefficient R of the...
- Q 24 04 An object is at a depth H below The surface of le liquid of refractive index What is its apparent depth when the angle of vision at surface...
- Q In a certain circuit current changes with time according to i 2 t r m s value of current between t 2 to t 4s will be 1 3A 2...
- Q 1 A Galileo telescope has an objective of foca length 100 cm magnifying power 50 The distance between the two lenses in norma adjustment will be A 150 cm C...
- Q es en 20 Three charges 4q Q and q are placed in a straight 2 line of length at points 0 and distance away from one end respectively What should...
- Q An inductor coil stores 32 J of magnetic field energy and dissipates energy as heat at the rate of 320 W when a current of 4 A is passed through...
- Q The current and voltage function in an AC circuit are I 100 sin100t mA V 100 sin 100t 10 3 volt the power dissipated in the circuit is 1 10...
- Q A 2uF capacitor is charged to 100 V After disconnecting the battery a 20 mH coil is then connected across the charged capacitor The capacitor discharges through the inductor and...
- Q A rectangular loop has a sliding connector PQ of length and resistance RS and it is moving with a speed v as shown The set up is placed in a...
- Q TARGET PRE MEDICAL 20 A 10 kg mass is resting on a horizontal surface and horizontal force of 80 N is applied If 0 2 the ratio of acceleration without...
- Q HOTS Problem 1 Four persons K L M and N are initially at rest at the four corners of a square of side d Each person now moves with a...
- Q In a series LCR circuit the frequencies f and 1 f at which the current falls to 1 current amplitude at resonance are separated by frequency interval R 2 2...
- Q 9 Two charges q and 4q are 1 m apart What are the location magnitude and sign of a third cha placed so that the entire system is at equilibrium...
- Q Box k A semi circular current carrying wire having radius R is placed in x y plane 2R with its centre at origin O There is non uniform magnetic field...
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