Physics question and answers for July 30, 2024
- Q 120 A metal jar has a gas of volume 10 3m at a pressure of 2 x 10 Pa and temperature 400K The jar has small hole and hence the...
- Q Five grams of KCIO yield 3 041 g of KCl and 1 36 L of oxygen at standard temperature and pressure Show that these figures support the law of conservation...
- Q In the circuit shown the power factor of the circuit is Power factor of only RC circuit is Source RMS voltage is 100 volt and its angular frequency w 100...
- Q Intensity of light 50 Two SHMs in same direction are represented by y asinot and y2 asin ut 8 When they superimpose the initial phase difference of the resultant SHM...
- Q A charge particle having charge qis projected with velocity Vo in the plane of current carrying loop ABCD as shown Magnetic force on charge particle is b 0 qVotole b...
- Q A small bar A resting on a smooth horizontal plane is attached by threads to a point P and by means of a weightless pulley to a weight B possessing...
- Q he speed of a projectile at its maximum height 1 is 2 times of its inital speed u of projection Its range on the horizontal plane is u 2g 1...
- Q 1 Two identical charged spheres are suspended by strings of equal lengths The strings make an angle of 30 with each other When suspended in a liquid of density 0...
- Q The two compounds given below are H H D I Br CI O Enantiomer O Identical O Meso compound O Diastereomers I D CI Br H H
- Q A ball is projected from the point O with velocity 20ms at an angle of 60 with horizontal as shown in figure At highest point of its trajectory it strikes...
- Q 18 In a series L C R circuit R 200 22 and the voltage and the frequency of the main supply is 220 V and 50 Hz respectively On taking...
- Q 119 When a mercury thermometer is inserted in a pot of hot water and the reading is recorded what temperature is being recorded 1 Average temperature of water and surrounding...
- Q in the figure shown two loops ABCD EFGH are in the same plane The smaller loop carries time varying current I bt where b is a positive constant and t...
- Q A particle of mass m kinetic energy K and momentum P collides head on elastically with another particle of mass 2m at res Match the following after collision Column I...
- Q 9 A point charge is placed at the center of a spherical Gaussian surface The electric flux phi is changed if 1 Point the sphore is replaced by cube of...
- Q Zero Marks 0 In all other cases One coil of resistance 400 is connected to a galvanometer of 1600 resistance The coil has radius 6 mm and turns 100 This...
- Q 3 When a force F is applied to a mass m its acceleration is 6 m s If the same force is applied to another mass m it gives an...
- Q 46 Position time graph for a particle is shown in figure Starting from t 0 at what time t the average velocity is zero x m 10 9 8 6...
- Q A ball is dropped onto to horizontal surface from a height of 36cm After bouncing several times it comes to rest covering a total distance of 108cm measured in a...
- Q 96 The vectors A B and C are such that A BLIC 21A and A B C 0 The angles between A and B Band C respectively are 3010 A...
- Q 100 A bullet is fired from a gun with a velocity 30 m s at an angle of 60 with the horizontal direction At the highest point of its path...
- Q Figure shows two blocks A and B having mass 2 kg and 4 kg moving with a speed 4 m sec and 2 m sec respectively The maximum compression in...
- Q 117 A nucleus disintegrates into two nuclear parts which have their velocities in the ratio 2 1 The ratio of their nuclear sizes will be EDAS Bodo Bodor Dos do...
- Q 18 Two blocks of mass 1 kg and 2 kg respectively are connected by a spring and kept on a frictionless table The blocks are pulled apart so that the...
- Q 120 Wggo e as od 50 550 od as 58s 500 550 5g esso de todos 9 10 Nm C po 506 58 3 108 ms Options 2x10 7 2...
- Q During adiabatic expansion of 2 moles of a gas the change in internal energy was found to b equal to 100 J The work done during the process will be...
- Q 102 A solid sphere and a thin spherical shell of same radius rotate about their diameters with same angular momentum but with different angular velocities IfM and M are the...
- Q 3 A stone is dropped from the top of a tower of height 45 m One second later another stone is thrown down from the top of the same tower...
- Q Two parallel metal plates A and B separated by a distance 25 cm are connected to an ammeter Photons of energy 3 28 eV are incident on the photosensitive plate...
- Q The ratio of the fundamental frequencies of two identical strings after one of them was stretched by 2 and the other by 4 is Assume that the tension is proportional...
- Q 150 V emf 550050 10 wodoodo ne as argos Bogo do 100 36550 gond das so 900 2 500 Ke as sy b 500 g ne Bro Jey bob rosdom...
- Q B ds 0 equation is not according to the following 3 B ds 0 35606 500 000 5 Options The net magnetic flux enclosed by any closed surface is zero...
- Q 3 Ground is g Both 2 3 The velocity v time 1 graph for a particle moving along x axis is shown in the figure The corresponding position x time...
- Q Two longparallel wires carry currents I and I2 11 12 When the currents are in the same direction the magnetic field at a point midway between the wires is 10ur...
- Q A man is carrying a block of certain material density 1000 kg m weighing 1 kg in his left hand and a bucket full of water weighing 10 kg in...
- Q Choose the correct statement among the followings A In outer space the sky looks dark and black instead of blue B Danger signal lights are red in colour C The...
- Q 95 Three hodies A B and C are projected with the same initial speed with angles of projections 30 45 and 60 respectively The body bodies having maximum range C...
- Q A current carrying wire has the configuration as shown in the figure Two semi infinite straight sections each tangent to the same circle are connected by a circular arc of...
- Q There is a uniform electric field of strength 103 Vm along the Y axis A particle of mass 1 g and charge 106 C is projected into the field from...
- Q Example 24 Monochromatic light is incident on a plane interface AB between two media of refractive indices n and n n2 n at an angle of incidence 0 as shown...
- Q Arrange the following optical media in increasing order for speed of light in them Air Glass Diamond Water Air Water Glass Diamond Diamond Water Glass Air Diamond Glass Water Air...
- Q Board Competitive Exams A ball is dropped from an elevator moving upware ation a ding
- Q 1 cm go he jo god se o P 555 5 00 s A do 5 uge so novedo sor rgos 50 00 Q 2 s 5 B Dod550 565...
- Q coaxial coils A and B as shown in figure The end planes of two coils facing the magnet due to induction will behave 4 Points Direction of motion J Q...
- Q equivalent resistance between A and B is 199286 60 Ke 2568 Ook ono dod Doen AB 50 ZAOB 45 A508050 Be 500g de 00 45 D B
- Q A rod of mass m and length L 50 3m is hinged in plank of same mass m The plank is kept on a smooth horizontal surface and rod makes...
- Q their potential energies What is the kinetic energy of a body of mass 1 kg moving with a speed of 2 m s Is potential energy a vector or a...
- Q Across a long conductor 2A current is flowering At 10cm from it another 5cm long conductor carries 3A The values of B at short conductor and force on it in...
- Q A wind powered generator converts wind energy into electric energy Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy For...
- Q Zero Marks 0 In all other cases If a charged spherical conductor of radius 10 cm has potential V at a point distant 5 cm from its centre then the...
- Q 1 Tick the correct option today times the Earth was very different from what it is t 1 In a modern b prehistoric 2 Early humans covered themselves with a...
- Q An electron moving in a uniform magnetic field 41 6j nk T experiences a force 21 3j 4k N Then the value of n is 41 6j nk T Ke...
- Q In a car race two cars start with velocities u and u and travel along a straight line with accelerations at and Brespectively If both reach the finish line at...
- Q 94 The position of a particle is given by F 3ti 412 Sk Then the magnitude of the velocity of the particle at t 2 sec is 25 50 50...
- Q ook now to pro 6000 A songso he soon rhod Sp s n Dojo6 3x10 cm od Ke as odos os as bos bud sood Spode Sro 20 54 36ujo...
- Q Two blocks of mass 10 kg and 2 kg respectively are connected by an ideal string passing over a fixed smooth pulley as shown in figure A monkey of 8...
- Q A 5 Kg slider moves along a smooth straight rod in a vertical plane Attached to it is a mass less spring k 100 N m unstretched length 2 m...
- Q The path of a light ray inside a transparent slab of variable refractive index is y 4x A light ray travelling in air falls on the surface of the slab...
- Q The figure shows two identical parallel plate capacitors connected to a battery with switch S closed The switch is now opened and the free space between the plates of the...
- Q Zero Marks 0 In all other cases 100 cells each of e m f 5V and internal resistance 12 are to be arranged so as to drive maximum current in...
- Q winter when the average temperature is 18 C The track consists of sections of 12 0 m placed on after the other How much gap in cm should be left...
- Q 03 A heavy brass sphere is hung from a weightless inclastic cord and acts as a simple pendulum with its period of oscillation T The sphere is immersed in non...
- Q DSE setup the pio prase un 9 both waves at point on the screen again the angular position 0 of point P on the screen is shown below Choose the...
- Q A conducting square loop is placed in a magnetic field B with its plane perpendicular to the field The sides of the loop start shrinking at a constant rate o...
- Q In hydrogen spectrum La line arises due to transition of electron from the orbit n 3 to the orbit n 2 In the spectrum of singly ionized helium there is...
- Q 53 A RC series circuit of R 1502 and C 10 F connected to 20 volt DC supply for very long time Then capacitor is disconnected from circuit and connected...
- Q 2 Two newspapers A and B are published in a city It is known that 25 of the city population reads A and 20 reads B while 8 reads both...
- Q Which of the following transitions of He ion will give rise to spectral line which has same wavelength as some spectral line in hydrogen atom Question Type Single Correct Type...
- Q 5 In the relation h 2Tcos a r pg where h is the height T is surface tension p density and r is the radius of a capillary tube a...
- Q A particle A having with a charge q 5 x 107C is clamped in vertical wall A small ball B of mass 100 g and having equa charge is suspended...
- Q e 16 Two bodies A and B of equal masses are kept at heights of h and 2h respectively What their potential energies 17 What is the kinetic energy of...
- Q Gourav purchased 5 pens 3 bags and 1 instrumental box and pays 16 From the same shop Dheeraj purchased 2 pens 1 bag and 3 instrumental boxes and pays 19...
- Q A particle is attached to the lower end of a uniform rod which is hinged at its other end as shown in the figure Another identical particle moving horizontally collides...
- Q 49 Figure shows the position of a particle moving on the x axis as a function of time m 20 10 0 2 4 6t s 1 The particle has...
- Q Two balls are projected upward simultaneously with speeds 40 m s and 60 m s Relative position x of second ball w r t first ball at time t 5...
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