Physics question and answers for September 21, 2024
- Q Two masses are executing SHM under influence of a vertical spring as shown with an amplitude of 2 cm and angular frequency of 5 rad s When the extension of...
- Q ar A solid current carrying conductor of radius R is having current per unit area J as J constant and r is distance from axis Find magnetic field at distance...
- Q 7 A solenoid of length 20 cm area of cross section 40 cm and having 4000 turns is placed inside another solenoid of 2000 turns having a cross sectional area...
- Q Aakash Rank Boost 1 An ideal monoatomic gas is carried around the cycle ABCDA as shown The efficiency of the gas cycle is PA 3P 1 1 2 Po 4...
- Q 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 push it into the...
- Q is col Q 7 they are exactly out of phase and the interferen 4 A travelling wave at a rigid boundary or a closed end is reflected with a phase...
- Q 4 A disc of mass m and radius R is hinged at its centre A light string is wrapped on its rim and the free end of the string is...
- Q 1 the wave intensity remains constant for a plane wave 2 the wave intensity decreases as the inverse square of the distance from the source for a spheric wave 3...
- Q 24 When a pressure of 100 atm is applied on a spherical ball then its volume reduces to 0 01 The bulk modulus of the material of the rubber in...
- Q A small ball thrown at an initial velocity u directed at an angle 0 37 above the horizontal collides inelastically e 1 4 with a vertical massive wall moving with...
- Q 36 If A 21 31 and B 41 61 2k then the angle between A and B is a 45 c 000 b 690 d none
- Q 1 Consider a solid sphere of radius r and mass m which has a charge q distributed uniformly over its volume The sphere is rotated about a diameter with an...
- Q A container has a lid held in place by a spring as shown in figure Two moles of ideal mono atomic gas is kept inside the container having cross section...
- Q For a particle in uniform circular motion the acceleration a at a point P R 0 on the circle of radius R is Here 0 is measured from the x...
- Q 102 A R R 1552 il A B B D D C R 1052 C m 532 5 Determine electric potential at each of the four nodes ABCD in the...
- Q 4 A thin uniform wire is bent to form the two equal sides AB and AC of triangle ABC where AB AC 5 cm The third side BC of length...
- Q 23 arrangement shown below A m UL b g g 2m B Accelerations of masses A and B just after cutting the string Care a 0 g Dolc c sa...
- Q At temperature T a compound AB2 g dissociates according to the reaction 2AB 2 g 2AB g B2 g with a degree of dissociation x which is small compared to...
- Q A simple pendulum of length 1 metre suspended from the ceiling of a lift executes oscillation with a period of 6 25 sec If the lift is moving up with...
- Q m th of its volume submerged A metal cube with temperature coefficient of cubical expansion Y has while floating in a liquid with temperature coefficient of cubical expansion y If...
- Q 30 unite ters a magnetic field B as shown ng with in figure 34 E13 a Find the radius of the circular arc it describes in the magnetic field b...
- Q 52 An electron is emitted with negligible speed from the negative plate of a parallel plate capacitor charged to a potential difference V The separation between the plates is d...
- Q Example 17 42 A column of air and a tuning fork produces 4 beats s When sounding together the tuning fork gives the lower note The temperature of air is...
- Q In the shown figure M and M2 are two concave mirrors of the same focal length 10 cm AB and CD are their principal axes respectively A point object O...
- Q Two straight long conductors AOB and COD are perpendicular to each other and carry currents and 12 The magnitude of the magnetic induction at a point P at a distance...
- Q In the circuit shown in figure below the current through A the 302 resistor is 1 A B the 32 resistor is 0 2 A C the 40 resistor is...
- Q ABC is an isosceles triangular sheet of negligible thickness made of isotropic material Mass of the sheet is m Its moment of inertia about axes perpendicular to its plane and...
- Q 5 A beam of cathode rays is subjected to crossed electric E and magnetic fields B The fields are adjusted such that the beam is not deflected The specific charge...
- Q In Fraunhoffer diffraction pattern obtained with a single slit at the angular position of first diffraction minimum the phase difference in radian between the wavelets from the opposite edges of...
- Q 25 Figure 34 E10 shows a circular wire loop of radius a carrying a current i placed in a perpendicular magnetic field B a Consider a small part dl of...
- Q Example 2 6 Two clocks are being tested against a standard clock located in a national laboratory At 12 00 00 noon by the standard clock the readings of the...
- Q 2 A linear magnet of magnetic moment M is bend in arc as shown in the given figure The magnetic moment of arc is Muy Me 1 M 3 3M...
- Q Imagine that you are sitting in a room in which a uniform magnetic field B exists An electron comes from your front in horizontal plane and gets deflected to your...
- Q The mean pressure is 6K 5 which rain renders to vertical windshield of automobile moving with constant velocity of magnitude v 12 m s Consider that raindrops fall vertically with...
- Q 5 A long straight wire of radius a carries a steady current I The current is uniformly distributed over its cross section The ratio of the magnetic fields B and...
- Q P and Q as two equally intense coherent sources emitting radiations of wavelength 20m as shown in the figure The separation PQ is 5m and phase of P is ahead...
- Q experiment with slits of equal intensity as shown in the figure Take O as origin and the Y axis as indicated If average intensity between D y and Y2 equal...
- Q 27 If in limbs of venturimeter height difference is 20 cm then find velocity of fluid flow 3 30cm 1 0 22 m s vid blow 2 0 15 mla...
- Q 30 of the resistors shown in figure 32 E11 has a resistance of 10 2 and each of the batteries has an emf of 10 V Find the currents through...
- Q 7 A gun is mounted on a railroad car The mass of the car the gun the shells and the operator is 50 m where m is the mass of...
- Q The moment of inertia of a metre scale of mass 0 6 kg about an axis perpendicular to the scale and located at the 20 cm position on the scale...
- Q 15 The block of mass m shown in figure 12 E2 is fastened to the spring and the block of mass m is placed against it a Find the compression...
- Q Three large conducting plates are placed a distance d apart in air The space between the first two plates is completely filled with a dielectric slab of dielec tric constant...
- Q In the circuit shown in figure the transistor used ha a current gain 100 What should be the bia resistor Rg so that V 5V necglect VBE CE RB B...
- Q three parallel straight wires placed perpendicular to plane of paper carrying same current I along the 03 same direction is BO 2 a Hoi 2nd d AO 90 shown in...
- Q A point charge is brought in an electric field The electric field at a nearby point a will increase if the charge is positive b will decrease if the charge...
- Q A closed loop carrying current i is placed so that its plane is perpendicular to the long current carrying straight conductor as shown in the figure The net force acting...
- Q The spring balance A read 2 kg with a block m suspended from it A balance Breads 5 kg when a beaker with liquid is put on the pan of...
- Q smoot and springs are deal If a block of mass m is given the velocity Vo the left direction then the time period of block as shown in the figures...
- Q 44 A car is moving at a speed of 40 m s on a circular track of radius 400 m This speed is increasing at the rate of 3 m...
- Q Two plano concave lenses of glass 3 2 have radii of curvature of 20 cm and 30 cm respectively they are placed in contact with curved faces towards each other...
- Q An isosceles triangle is to be cut from one edge of a square lamina as shown in the figure such that the remaining portion when suspended from the apex P...
- Q At t 0 a transverse wave pulse travelling in the positive x direction with a speed of 2 m s in a wire is described by the function y given...
- Q If f number of a camera changes from f 5 6 1 40 f 4 t then change in area of aperture is 2 50 bo 3 14 4 56
- Q AB lies across the frictionless parallel conducting rails magnitude at t 0 is Bo The rod AB is in a uniform magnetic field B whose given velocity v right ward...
- Q the following option is not correct for inelastic collision The velocity of both the particles may be same after the collision 2 Kinetic energy is not conserved 3 Linear momentum...
- Q If a capillary is radius r is dipped in water the height of water that rises in it is h and its mass is M If radius is made four...
- Q Object 50m 90cm f 1m f 8cm Find linear magnification in the given diagram 2 0 01 m 4 0 03 0 04 3 0 02
- Q The velocity time v t graph for a particle in straight line motion is given below The corresponding acceleration time a t graph will be a 1 O a 3...
- Q energy and t is time The dimension of a and b is 1 ML T MLT 1 2 M L T M 1L T 3 3 M L T ML...
- Q A block of mass M and cylindrical tank which contains water having small hole at bottom Which is closed initially total mass of cylinder water is also M are attached...
- Q A compass needle free to turn in a horizontal plane is placed at the centre of a circular coil of 30 turns and radius 12 cm The coil is in...
- Q the circuit shown below is X wwwwwww 50 2 50 2 1 10 volt JEE FOU akash Edaten wwwwww 30 52 Y 10 52 2 92 80 volt points x...
- Q 5 An apple of mass 0 25 kg falls from a tree What is the acceleration of the apple towards the earth Also calculate the acceleration of the earth towards...
- Q Example 9 17 Two thin uniform rings made of same material and of radii R and 4R are joined as shown The mass of smaller ring is m Find the...
- Q In arrangement of resistances shown in the diagram is attached to a constant source of emf s The resistor at the top consists of a wire of length L and...
- Q instantaneous picture of a longitudinal harmonic wave travelling along the negative x axis Identify the correct statement s related to the movement of the points shown in the figure un...
- Q 60 A ball of radius r rolls inside a hemispherical shell of radius R It is released from rest from point A as shown in figure The angular velocity of...
- Q In the figure shown rod AB is light and rigid while rod CD is also rigid and hinged at midpoint O Rod can rotate without friction about O The time...
- Q and the acceleration of the 500 g block in figure 5 E18 100 g 50 g 30 0 Figure 5 E18 500 g
- Q D A mass m moving horizontally along the x axis with velocity v collides and sticks to a mass of 3m moving vertically upward along the y axis with velocity...
- Q 2 In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens The eye piece forms a real image...
- Q 3 3 4 4 40 The equation y 4 2 sin 6t 3x represents wave motion with 1 amplitude 6 units 2 amplitude 4 units 3 wave speed 2 units...
- Q For the circuit shown in figure the potential difference between points a and b is 2V 1 2 4 V 3 2 V 102 www 192 www www 192 452...
- Q 5 A proton and deuteron are accelerated by same potential difference and enter in region of uniform electric field in direction perpendicular to it The deflection of proton is 1...
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