Physics question and answers for July 11, 2024
- Q A particle of mass m moving with velocity vo on smooth surface collides elastically with uniform rod 4m 1 and comes to rest immediately Velocity of end A just after...
- Q A uniform solid sphere rolls up without slipping the rough fixed inclined plane and then back down Which is the correct graph of acceleration a of centre of mass of...
- Q block of mass M is placed on the top of bigger block of mass 10 M as shown in gure All the surfaces are frictionless The system is released from...
- Q A battery of emf E and internal resistance r is connected across a resistance R Resistance R can be adjusted to any value greater than or equal to zero A...
- Q Three resistors are in parallel The current in the first resistor is 0 5 A The power dissipated in the second is 15 watts The voltage across the third is...
- Q A concave mirror is kept as shown in figure Its principal axis coincides with the x axis A real object is moving towards the pole of the mirror starting from...
- Q 3 A tuning fork with frequency 800 Hz produces resonance in a resonance column tube with upper end open and lower end closed by water surface Successive resonance are observed...
- Q A closed rectangular tank is completely filled with water and is accelerated horizontally with an acceleration towards right Pressure is i maximum at and ii minimum at B Question Type...
- Q Resistance of a wire at temperature t C is R Ro 1 at bt Here R is the temperature at 0 C The temperature coefficient of resistance at temperature tis...
- Q A wedge of mass M is kept on a smooth inclined plane in figure along with a block of mass m placed inside the wedge Block is free to move...
- Q b Fig 3 1 shows a boat that has been lifted out of a river The boat is suspended by two ropes It is stationary Tif ii C the tension...
- Q A wire of length 100cm carries a steady current i The potentials at the ends of the wire is 5V and 25V The value of potential at x 30cm is...
- Q stration 7 Two charges each of magnitude Q are fixed at 2a distance apart A third charge q of mass m is placed at the mid point of the two...
- Q The extension load graph for a spring is shown The unstretched length of the spring is 17 0cm A extension cm 1 4 N 3 2 1 0 0 1...
- Q carrying a current I The radius of the innermost and outermost turns see figure are a and 4a respectively The expression for the magnetic moment of the spiral is et...
- Q There are two sources of light each emitting with power of 100 W One emits X rays of wavelength 1 nm and other visible light at 500 nm What is...
- Q constant velocities along X axis at time t seperation between both is 20 m Take usu sign convention Choose correct graph position of A with respect to B AB vs...
- Q 10 A book has a mass of 400 g The surface of the book in contact with a table has dimensions 0 10 m 0 20 m The gravitational field...
- Q Two students carry out different experiments to compare the abilities of different metals to conduct thermal energy heat metal bar ABC D melted wax strip length of melted wax strip...
- Q In the circuit shown P R the reading of the galvanometer is same with switch S open or closed Then 1 R IR IG S ww H a Question Type...
- Q SI TO A particle moves along a straight line OX At a 3 time t in second displacement of the particle from O is given by x 40 12t t...
- Q A ray of light will not come out of a prism prism angle A for any value of angel of incidence The refractive index of material of prism is Which...
- Q 5 Meter Bridge is device based on wheatstone bridge with resistances connnected in a particular fashion It can be used to obtain unknown resistance One of the resistance wire used...
- Q Under what conditions current passing through the resistance R can be increased by short circuiting the battery of emf E The internal resistances of the two batteries are r and...
- Q 3 18 sec 4 9 sec A coin is released inside a lift at a height of 2 m 20 from the floor of the lift The height of the...
- Q A box with a mass of 5 0 kg that is moving at 4 0 m s on horizontal frictionless surfaces runs into a light spring with a force constant...
- Q 10 A carnot engine having an efficiency of t of heat engine is used as a refrigerator If the work done on the system is 10 J the amount of...
- Q A body of mass 5 kg starts from the origin with an initial velocity u 30i 40j m s If a 5 constant force F i 5j N acts on...
- Q 8 Given C 2uF C2 4 F C3 8 F C C2 C3 are initially uncharged Initially all the keys are open Then 6h www 12 V 3h 12 h...
- Q 2 3 1 6 5 7 1 1 0 A Rotating earth b trees c wall d ground Velocity is a Distance time b displacement time c force velocity d...
- Q Phy Section A This section contains 35 SINGLE CORRECT TYPE questions Each question has 4 choices 1 2 3 and 4 out of which only Six identical capacitors each of...
- Q 31 4 Given moss m of leryth e imparted J bob of ii find Just the a string momenten i Draw diagram of p of bob Bob 6 E of...
- Q maximum speed with which a person can swim in the still water He intends to cross the river by shortest possible path i e he wants to reach the point...
- Q The pressure applied from all directions on a cube is P How much its temperature should be raised to maintain the original volume The volume elasticity of the cube is...
- Q 30 ALLEN The equivalent resistance between the points A 30 fefe for in and B in the following circuit is www 1 3 120 3 6 240 50 B www...
- Q Two particles are fixed to an x axis particle 1 of charge q1 2 73 x 10 8 C at x 17 0 cm and particle 2 of charge q2...
- Q A light cylindrical vessel of radius r is kept on a rough horizontal surface so that it cannot slide but can topple It is filled with water upto a height...
- Q 20 The 51 0cm diameter disk rotates counterclockwise on an axle through its center F1 62 2N F2 74 5N F3 74 5N F4 62 2N and d 7 51cm...
- Q 9 28 4 0 1A The equivalent resistance between A and B is 1 4R AO Bo The potent 2R2R 2 2R 3 R 2R 4 0 5R 28 3...
- Q ALLEN A boy is running on a levelled road with velocity V 22 with a long hollow tube in his hand Water is falling vertically downwards with velocity u At...
- Q A constant potential difference is maintained between the ends of a conductor having non uniform cross section Which of the following quantities will not change along the length of the...
- Q the tension in the rope of mass M length L at the given point P as shown in the figure 44 x drx xx X dml M 1 mg xg...
- Q If x and y denote the distances of the object and image from the focus of a concave mirror The line y 4x cuts the graph at a point whose...
- Q 34 A particle of mass 4kg moving with a speed s collides with a train moving in an opposite direction with a speed of 20m s If coefficient calculate the...
- Q Q 14 A positively charged sphere A is brought close without touching to a neutral sphere B Sphere B is touched with a grounded wire What is the charge on...
- Q Three large identical conducting plates are placed at a distance d in air The space between the first two plates is filled completely with dielectric of dielectric constant 2 as...
- Q Q285 A screen is placed 90 cm from an object The image of the object on the screen is formed by a convex lens at two different locations separated by...
- Q R 7 Two buildings are separated by 30 m By what 17 speed a ball is projected horizontally from a window at height 150 m in one building so as...
- Q A ray of light is incident at an angle of incidence 0 as shown in fig If the angle between the two plane mirror is 90 then for what value...
- Q In given meter bridge circuit length of wire AB is 1m When resistance X is shunted by R resistance then balancing length from A is found to be 20 cm...
- Q A vernier calipers and a screw gauge have the same least count and zero error with the difference that the vernier calipers has positive zero error and the screw gauge...
- Q If the momentum of an electron is changed by p then the de Broglie wavelength associated with it changes by 0 5 The initial momentum of the electron will be...
- Q Drops of a liquid are falling from the top of a 8 building of height 20 m at regular interval such that when 1st drop reaches the ground third is...
- Q A crane is used to lift loads vertically The output power of the crane to lift a car is P The crane then lifts a lorry which has 3 0...
- Q If 1 000 g of 226Ra refer to notation shown produces 0 0001 mL of the gas 222Rn refer to notation shown at STP standard temperature and pressure in 24h...
- Q An extended object is initially at rest on a frictionless horizontal surface as shown in the figure At t 0 the forces F F2 and F3 start applying on the...
- Q A B What is the resultant force on the object 1N to the left 1 N to the right 7N to the left 7N to the right C The diagram...
- Q A disk of radius 4 having a uniformly distributed charge 6 C is placed in the X Y plane with its centre at a 2 0 0 A rod of...
- Q A rectangular tank is filled completely with water A hole at its bottom is unplugged The graph between the velocity of efflux through a small hole vs depth of water...
- Q Displacement of a particle at time t is expressed as s 1 31 Now the acceleration of the particle at the time when the velocity vanishes 2 is Answer 0...
- Q For the magnetic dipole in the figure find the force exerted by first dipole on the second dipole Where m m and m m determine whether the force is repulsive...
- Q A student suggests that there are several ways of transferring energy to a small stationary block of iron on a smooth table He makes the following suggestions 1 A 3...
- Q An object is pivoted at point P A student ties a length of string to a peg on the object He pulls the string with a force F peg B...
- Q 38 Two trains are approaching each other on parallel tracks with same velocity The whistle sound produced by one train is heard by a passenger in another train If actual...
- Q Two planets A and B have same mass and radii R The variation of density of the planets with distance from centre is shown in the following diagrams The ratio...
- Q ALLEN 11 Velocity time graph of a particle undergoing 11 farm to h rectilinear motion is plotted upto T t as shown in the figure Average acceleration of the particle...
- Q 13 Very small pollen grains are suspended in water A bright light shines from the side When looked at through a microscope small specks of light are seen to be...
- Q Condition of charging and indicate the direc and electrolyte Q10 Define current density Write it s relation with electric field Q11 Using Krichoff s law determine current through each rocintor
- Q In the following circuit the resistance of a 31 voltmeter is 10 0002 and that of an ammeter is 2002 If the reading of ammeter is 0 1A and that...
- Q of this cell is OT Q13 Derive condition for balanced wheatstone bridge condition Paragraph Q14 Electrons in a conductor are moving randomely due to thermal energy this making it s...
- Q 2 A series circuit of R 14 4 Ohm L 0 127H draws a current of 4 6 amp when connected to an alternating voltage source of 230V Find frequency...
- Q A particle of mass as an electron 1 mg has the same wavelength moving with a velocity of 3 x 106 m s 1 The velocity of the particle is...
- Q Two wires of the same material and length are stretched by the same force Their masses are in the ratio 3 2 Their elongations are in the ratio Question Type...
- Q 1 27 A 2 54 A 3 108 A 4 054 A 9 A hollow cylinderical wire carries a current 1 having inner and outer radii R and 2R respectively...
- Q A truck blowing horn of frequency 500 Hz travels towards a vertical mountain and driver hears echo of frequency 600Hz If velocity of sound in air is 340m s then...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!