Physics question and answers for July 22, 2024
- Q 20x10 4 Two different instruments say guitar ar harmonium playing same music the sound appears different though they pla same frequency because they have different loudness 2 they are played...
- Q diodes D D and D3 are ideal for the following potential of A and B The correct increasing order of resistance between A and B will be R 4 D...
- Q The two slits at a distance of 1 mm are illuminated by the light of wavelength 6 5 10 m The interference fringes are observed on a screen placed at...
- Q n a standard YDSE arrangement d 3 mm D 1 m and wavelength 1 mm Plane wave is incident normally on the slits as shown Then L Screen 1111 A...
- Q The system shown in the figure below consists of a light inextensible cord light frictionless pulleys and blocks of equal mass Notice that block B is attached to one of...
- Q There are three block A B and C of mass 1 kg 2 kg and 3 kg are shown in figure If 15 and 6 N force apply on A...
- Q solid sphere of mass 1 kg is tied with a light string to a smooth vertical wall as shown in ne figure A The normal reaction exerted by wall to...
- Q Consider a unit cube which is acted upon by an equal tensile force of F on all the six surfaces of the cube The increase in the length of each...
- Q A scaffold of mass 79 kg and length 7 6 m is supported in a horizontal position by a vertical cable at each end A window washer of mass 67...
- Q 4 A bucket tied at the end of a 1 6 m long string is whirled in a vertical circle with con stant speed What should be the minimum speed...
- Q a d c c Ca 4 d Ho 2 2 M 4t d EN Which of the four graphs may best represent the current deflection relation in a tangent galvanometer...
- Q 22 Two similar small balls of mass m and charge q each are suspended by silk strings having length l according to the figure If in the figure 0 is...
- Q 13 It is observed that as one moves along posit x axis the electrostatic potential reduces One n conclude that the direction of electric field 1 Must be along x...
- Q y Chemical Kinetics production in Flowering plants Human Reproduction YSICS JEE Founda The equivalent capacitance between points A and B Services Limited as of five identical capacitors of capacitance 2...
- Q Q4 A 0 5 kg block slides from A on horizontal track with an initial speed of 3 ms towards a weightless horizontal spring of length 1 m and force...
- Q 3 90 V 4 60 V 16 In a certain region potential is given by V k 2xy The electric field at 1 1 has magnitude 1 2 k 2...
- Q electrons is 12 times to that of holes If number density of electrons is 3 times to the number density of holes then the ratio mobility of free electrons to...
- Q Abattalion of soldiers is ordered to swim across a river 500 m wide At what minimum rate should they swim perpendicular to river flow in order to avoid being washed...
- Q For four particles A B C D the velocities of one with respect to other are given as Voc is 20 m s towards north VBC is 20 m s...
- Q 25 Source and observer both start moving simultaneously from origin one along x axis and the other along y axis with speed of source 2 speed of observer The graph...
- Q For the following figure calculate the shear stress V when x 16 0 m Draw the Shear Force and Bending Moment diagrams and upload these at the end of the...
- Q 7 If the speed of light were 2 3 of its present value the energy released in a given atomic explosion will be decreased by a fraction m 2 C...
- Q 6 Assume the piezoceramic sensor dimensions 15mm x 35mm x 0 6mm W L T The parameters are 831 12 x 10 Vm N E 8x 10 0 N m...
- Q Numerical Value Type Read More Network shown in the figure is part of a circuit The current is 2 A and is decreasing at the rate of 2 A s
- Q 3 V V V 4 V V V In given circuit find the reading of voltmeter Er ET B 1 2 2 3 3e 4 0 When a current of...
- Q 10 Three slabs A B and C are placed in front of slits in YDSE as shown in figure Refractive index of slabs A B and C are 4 3...
- Q At t 0 a sound source S and observers 0 O2 are placed as shown S is moving with speed V and 0 and O2 are moving with speed Vo...
- Q A uniform equilateral wire frame in vertical plane having mass 3m and length at each side I is hinged at A Two ideal mass less springs of force constants k...
- Q The field due to a wire of n turns and radius r which carries a current I is measured on the axis of the coil at a small distance h...
- Q State the representation with no spaces between numbers A Question 8 1 point What is the decimal representation value of the binary number 101101
- Q 15 Charge is distributed inside a long cylindrical volume of radius R such that charge density inside the volume varies as where a is a constant and r the distance...
- Q 28 In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact what will be angle of refraction 1...
- Q A conducting ring of mass m and radius r has a weightless conducting rod PQ of length 2r and resistance 2R attached to it along its diameter It is pivoted...
- Q For paraxial rays show that the focal length of a spherical mirror is one half of it radius of curvature Explain about total internal reflecting prisms with suitable ray diagrams
- Q 25 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 A car of mass m starts from rest and accelerate so that instantaneous power delivered to the car has a constant magnitude Po The instantaneous velocity of this car is...
- Q Statement1 Bending of light due to obstruction by opaque objects is called the phenomenon of Refraction Statement2 Different speeds are experienced by a ray of light while it travels in...
- Q A student performs an experiment to determine the Young s modulus of wire exactly 2 m long by Searle s method In a particular reading the student measures the extension...
- Q A point object is placed on the axis of the concave mirror at a distance of 60 cm from the focal point of the mirror Its image is formed at...
- Q ng the on of eld in force A particle of specific charge kg is projecte from origin towards positive x axis with a veloci of 10m s in a uniform...
- Q SolveLancer Test Consider the following statements given below and answer the correct 1 For a system of particles the sum of momentum and the sum of kinetic energy of particles...
- Q The current velocity of a river grows in proportion to the distance from its bank and reaches the maximum value vo in the middle Near the banks the velocity is...
- Q An initially uncharged capacitor C is being charged by a battery of emf E through a resistance R upto the instant when the capacitor is charged to the potential E...
- Q SolveLancer Test In a hypothetical situation a small spaceship having charge q approaches a massive planet which has a charge Q Initially the distance between them is very large as...
- Q Determine value of Vo for the elect shown in the figure Ge 10 V 1 6 6 V Si 1 22 OV 3 392 2 9 V 4 6 6...
- Q Block is free to move inside a vertical fixed smooth tube shown in the figure Choose correct option s Block will oscillate when v 2gR Block will complete vertical circular...
- Q The position of vector of a particle that is moving in three dimensions is given by 7 1 2 cos 2cot i 3sin wt 31 k in an inertial frame...
- Q 106 Electromagnet 8 An inductor L and a resistance R are connected in series with a battery of emf E and a switch Initially the switch is open The switch...
- Q 51 If and be the wavelength of first Balmer line of deuterium and hydrogen respectively then un am a va di un ar to 1 H 2 H 3 H...
- Q A ring which is initially placed at the height h as measured from its center rolls down an inclined plane making an angle with the horizontal starting from rest The...
- Q A rod is fixed between a vertical wall and a horizontal surface A smooth ring of mass 1 kg is released from rest which can move along the rod as...
- Q 54 The current i in a induction coil varies with time t according to the graph shown fayd er i et nyt ada di which of the following graph shown...
- Q In the given figure the variation of potential energy of a particle of mass m is represented wr t its x coordinate The particle can move under the effect of...
- Q 26 A small circular flexible loop of wire of radius R carries a current It is placed in a uniform magnetic B The tension in the loop will be doubled...
- Q Potential energy function along x axis in a certain force field is given as x3 5 U x 6x 6 3 2 For the given force field choose the correct...
- Q Mechanical Properties of Solids 13 The edge of an aluminum cube is 10 cm One face of the cube is firmly fixed to a vertical wall A mass of 100...
- Q The displacement of a particle is rep resented by the following equation s 3t 3 7t 2 5t 8 Where x is in meters and t in second s The...
- Q 1 42 A solid non conducting hemisphere of radius R has a uniformly distributed positive charge of density p per unit volume A negatively charged particle having charge q is...
- Q The edge of an aluminum cube is 10 cm One face of the cube is firmly fixed to a vertical wall A mass of 100 kg is attached to the...
- Q Two particles A and B moving in X Y plane are at origin at t 0 sec The initial velocity vectors of A and B are A 81 m s...
- Q You are given a number of 27 resistors each capable of dissipating only 2 9 W without being destroyed What is the minimum number of such resistors that you need...
- Q Find the voltage across 4 resistor for the circuit shown in figure 1002 www 1522 E 25 V www 492 602 www 892 Only one correct answer 852
- Q A spherically symmetric change distribution is characterised by a change density having the following variation 2014 p r Po 1 R p r 0 for r R The radial electric...
- Q A conducting spherical shell is given charge 20 A point charge Q is kept inside the shell at point O as shown Now if charge Q is shifted from point...
- Q educe circuit below to its Thevenin equivalent circuit which will contain one resistor on apacitor and one power supply Also calculate the current through the circuit after the apacitor s...
- Q 17 The moment of inertia of a solid sphere about an axis passing through centre of gravity is MR then its radius of gyration about a parallel axis at a...
- Q 1 20 Find the electric field strength vector at the centre of a Vball of radius R with volume charge density p ar where a is a constant vector and...
- Q Two batteries of emf s 5V each and internal resistance R R R R respectively are connected in series with wires having negligible resistance Then A V V V Ve...
- Q ash me ans violet dia hai hat is correct In white light interference nearest to the central bright fringe will have which of the following colour 1 violet 2 yellow...
- Q A satellite is moving in a low nearly circular orbit around the earth Its radius is roughly equal to that of the earth s radius Re By firing rockets attached...
- Q The potential energy of each 2uF capacitor is 1 J and that of the 6 F capacitor is 2 J Find i the potential difference between A B ii the...
- Q A particle is thrown horizontally with speed 10 m s along the rim of a smooth fixed cylinder of height 20m Taking g 10 m s2 the time taken by...
- Q 1 55 A positive charge Q is fixed at a point A Another positively charged particle of mass m and charge q is projected from a point B with velocity...
- Q A hollow copper tube is filled completely using a steel rod The rod and tube are joined by two rivet pins as shown in the figure d d 2 Y...
- Q Apparent dip at a place is always greater than or equal to the value of true dip at that place This is due to 1 Increase in apparent value of...
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