Physics question and answers for September 02, 2024
- Q A car of mass m is driven with acceleration a along a straight level road against a constant external resistive force R When the velocity of the car is V...
- Q 3 Which of the following represents correct variation of electric potential due to an ideal electric dipole at large distance r from it 1 V 2 3 V x 1...
- Q M m Two particles are executing simple harmonic motion of the same amplitude A and frequency o along the x axis Their mean position is separated by distance X X...
- Q 21 An object 1 5 cm in size is placed on the side of the convex lens in the arrangement with a concave lens the distance between two lenses is...
- Q A particle is describing simple harmonic motion If its velocities are v and v when the displacements from the mean position are y and y respectively then its time period...
- Q At what temperature is the R M S Velocity of Hydrogen molecule equal to that of a molecule at 47 C Molecular weight of hydrogen A 20 K B 80...
- Q Cells in Series and Parallel Kirchhoff s 16 The charge in the 2 F capacitor at steady state is 1 Zero 2 2 C 3 4 C 4 6 C...
- Q A particle is released from rest at origin It moves under influence of potential field U x 3x kinetic energy at x 2 is fog feen arren fagfaff af U...
- Q The displacement of a particle from its mean position in m is given by y 0 2 sin 10nt 1 5p cos 10nt 1 5n The motion of particle is...
- Q The displacement of a particle executing simple harmonic motion is givin by y A Asin wot B cos wt Then the amplitude of its oscillation is givin by 1 A...
- Q F 2x 3x 2 Choose correct option F 2x 3x 2 Hafa f A x 1 2 is position of stable equilibrium x 1 2fef B x 2 is position...
- Q Linear charge density on circumference of half ring is If a particle of mass m and charge is kept at the centre of the ring then acceleration of particle is...
- Q In the circuit shown R 9 Q R 2 30 Q R 3 15 Q2 and the emfs 1 29 V 2 10 V and 3 15 V Calculate 13...
- Q Assertion A A reflecting type telescope is preferred over refracting type in astronomy Reason R reflecting type telescope is free from chromatic aberration and parabolic surfaces are us to avoid...
- Q A uniform cylinder of mass m and length having area of cross section a is suspended lengthwise with the help of a massless spring of constant k The cylinder is...
- Q A charge q is kept in a closed surface as shown If flux through each plane surface is o then flux through curved surfaces is 1 3 q 380 9...
- Q The displacement x as a function of time t of a simple harmonic motion is represented by where A is a positive by constant 4 first increases and then decreases...
- Q In forced oscillation of a particle the amplitude is maximum for a frequency of the force while the energy is maximum for a frequency oo of the force then Cit...
- Q Two simple harmonic motions are represented by the equations Y 0 1 sin 100nt y2 0 1 cos 100nt The phase difference of the velocity of particle 1 with respect...
- Q A mass of 2 0 kg is put on a flat pan attached to a vertical spring fixed on the ground as shown in the figure The mass of the...
- Q AIPMT 2009 Which one of the following equation of motion represents simple harmonic motion 1 Acceleration kx k x 2 Acceleration k x a 4 Acceleration kx 3 Acceleration k...
- Q 3 between 0 and v 4 between U and The magnitude of average acceleration in half time period from equilibrium position in a simple harmonic motion is 1 2Am TC...
- Q A body is executing simple harmonic motion At a displacement x its potential energy is E and at a displacement y it potential energy is E The potential energy E...
- Q 3 y t 4 sin nt 2 y projection of the raidus vecotr of rotating particle P is 1 y t 3 cos It 2 5 where y in m...
- Q The displacement of an object attached to a spring and executing simple harmonic motion is given by X 2 10 Cos t metres The time at which the maximum speed...
- Q 3 I sec 4 0 5 sec A particle is oscillating freely with a natural frequency w and amplitude a It is later subjected damping force proportional to its velocity...
- Q 6 e The average energy in one time period in simple harmonic motion is C 1 m A 2 m w A 3 m A 4 4 zero harmonic motion...
- Q A conducting sphere of radius 10 cm has an unknown charge The electric field at 30 cm from the surface of shell is 3 6 10 N C and points...
- Q A particle of mass m is executing oscillations about the origin on the x axis Its potential energy is U x k x whe k is a positive constant If...
- Q Two particle are oscillating along two close parallel straight lines side by side with the same frequency and ampli tudes They pass each other moving in opposite directions when their...
- Q 21 Two pendulums at rest start swinging together Their lengths are respectively 1 44 m and 1 m They will again start swinging in same phase together after of longer...
- Q A toy car of mass m is having two similar rubber ribbons attached to it as shown in the figure The force constant of each rubber ribbon is k and...
- Q A girl running on ground observes rain to be falling at a speed 10 m s The rain is falling vertically downward at a speed 6 m s with respect...
- Q 20 Equipotential surfaces are shown in the region in x plane Electric field intensity in the region is 1 50 2 50 3 50 4 50 m M 3 V...
- Q 3 4f A particle of mass m executes simple harmonic motion with amplitude a and frequency u The average kinetic energy during its motion from the position of equilibrium to...
- Q 1 Straight line 2 Circle 3 Ellipse 4 Figure of eight Two mutually perpendicular simple harmonic vibrations have same amplitude frequency and phase When superimpose the resultant form of vibration...
- Q The oscillation of a body on a smooth horizontal surface is represented by the equation X A cos cot where X displacement at time t frequency of oscillation Which one...
- Q 1 3 5 2 25 9 3 A body executes simple harmonic motion The potential energy P E the kinetic energy K E and total ener T E are measured...
- Q 1 10 cm 2 20 cm 17 32 Two particles execute S H M of same amplitude and frequency along the same straight line from same mean position They cross...
- Q A block of mass m is resting on a piston which is moving vertically with a SHM of period 1 s The minimum amplitude of motion at which the block...
- Q 4 time period and displacement At how many maximum points velocity of simple pendulum is same 1 1 2 2 3 4 4 6 The velocity of a particle in...
- Q A block of mass m initially at rest is sliding up in vertical direction against a rough vertical wall with the help of a force F whose magnitude is constant...
- Q 1 Increases 2 Decreases The mass and diameter of a planet are twice those of earth The period of osillation of pendulum on this planet will be If it is...
- Q The position vector of a particle from origin is given by F A cosat jsinot The motion of the particle is 1 simple harmonic Ob 3 on a circle 2...
- Q 33 When an oscillator completes 100 oscillation its ampliutde reduced to of initial value What will be its amplitude 3 when it completes 200 oscillation 400 27 1 1 2...
- Q The time period of a particle in simple harmonic motion is equal to the time between consecutive appearance of th particle at a particular point in its motion This point...
- Q 70 A wall clock uses a vertical spring mass system to measure the time Each time the mass reaches an extreme position the clock advances by a second The clock...
- Q 1 0 A mass M is performing linear simple harmonic motion then correct graph for acceleration a and corresponding line velocity v is M 85
- Q 6 Three identical resistors R R R are as shown to a battery of constant e m f The power dissipated is P www R R 1 The least in...
- Q 21 5 A spring of force constant k is cut into lengths of ratio 1 2 3 They are connected in series and the new for constant is k Then...
- Q irst decreases and then increases A 25 kg uniform solid sphere with a 20 cm radius is suspended by a vertical wire such that the point of suspensic vertically ab...
- Q 1 0 25 m 2 0 52 m 3 2 5 m A particle moves on the X axis according to the equation x x sin oot The motion is...
- Q A mass M is suspended from a light spring An addtional mass mass added displaces the spring further by a distance x Now the combined mass will be oscillate on...
- Q Which of the following statements is not true In the case of a simple pendulum for small Teme perio 1 Directly proportional for square root of the length of the...
- Q For a metallic conductor if p is resistivity at T and po is resistivity at reference temperature To then resistivity p is given by a is temperatu coefficient of resistivity...
- Q 9 For a compound pendulum the maximum time period is L 2k 2 2 3 Zero 4 Infinite g g ring of radius R is suspended from its circumference and...
- Q 1 A 2 2A 1 2 al potom s The distance moved by a particle in simple harmonic motion in one time period is L A 2 2A 3 4A...
- Q A student says that he had applied a force F k x on a particle and the particle moved in simple harmonic motion He refuses to tell whether k is...
- Q A simple pendulum has some time period T What will be the percentage change in its time period if its amplitud decreased by 5 1 6 4 0 2 3...
- Q The radius of cross section of the conductor of length varies linearly from a to 2a If the resistivity of the conductor is p and a the resistance of the...
- Q A simple pendulum is set up in a trolley which moves to the right with an acceleration a on a horizontal plane Then th thread of the pendulum in the...
- Q For a particle executing simple harmonic motion the acceleration is proportional to 2 distance from the mean position displacement from the mean position 3 distance travelled since t 0 4...
- Q DU KX 2 2 U KX 3 U K The kinetic energy and potential energy of a particle executing simple harmonic motion will be equal when displacement amplitude a is...
- Q 32 Two bodies M and N of equal masses are suspended from two separate massless spring of force constants k and k respectively If the two bodies oscillate vertically such...
- Q The displacement of a particle in simple harmonic motion in one time period is 1 A AS 2 2A 1 2 al otome 3 4A 4 zer The distance moved...
- Q 6 The average acceleration in one time period in a simple harmonic motion is 1 A w 2 A w 2 3 A 00 2 4 zero
- Q 12 A parallel plate capacitor with ci radius a is being charged as shown in the figure At the instant shown the displacement current in the to region between the...
- Q A thin rod of length 1 m is suspended from its end and is made to oscillate in a vertical plane The distance between point of suspension and centre of...
- Q The distance between the point of suspension and the centre of gravity of a compound pendulum is and the rac of gyration about the horizontal axis through the centre of...
- Q 15 0 119 Acceleration a versus time t graph of a body in SHM is given by a curve shown below T is the time peirod Then corresponding graph between...
- Q motion is S H M with amplitude a 2 4 The motion is S H M with amplitude 2a The resultant of two rectangular simple harmonic motions of the same...
- Q 2 Coefficient of linear expansion of material of resistor is a Its temperature coefficient of resistivity and resistance are a and a respectively then correct relation is 1 r 3...
- Q Attenuation of the x rays that penetrate through the body tissues which depends on I The tissue type II The intensity of the beam III The thickness of the tissue...
- Q n an explosion a body breaks up into two pieces of unequal masses In this case O Both parts will have equal kinetic energies Lighter part will have more momentum...
- Q Two unequal soap bubbles are formed one on each side of a tube closed in the middle by a tap What happens when the tap is opened to put the...
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