Physics question and answers for August 26, 2024
- Q 4 Maximum when the sheet is just near the ve plate The value of a capacitor formed by a thin metallic foil is 2 uF The foil is folded with...
- Q Problem 2 A line charge with linear charge density 10 2 C m passes through the center of a sphere If the flux through the surface of the sphere is...
- Q Two particles are projected simultaneously with different speed from same point in a plane as shown in figure The incorrect statement is 4 m s y 53 3 m s...
- Q A network of four capacitors of capacity equal to C C C 2C C 3C and C 4C are connected to a battery as shown in the figure The ratio...
- Q If the two plates of the charged capacitor are connected by a wire then 1 potential will become infinite 3 capacitor will get discharged 2 charge will become infinite 4...
- Q A sheet of aluminium is inserted in the air gap of a parallel plate capacitor without touching any of the two plates of the capacitor The capacitance of the capacitor...
- Q The radius of the circular plates of a parallel plate capacitor is R Air is dielectric medium between the plates If the capacitance of the capacitor is equal to the...
- Q B When you have read the question and need time to solve it When you have received the question and you have to go throu it before answering When you...
- Q The potential of earth is zero because it is 1 unchanged 3 an object of infinite capacitance two plates of the charged capacitor are connected by a wire then 2...
- Q 4 Have speeds varying from zero up to 50 of the X rays coming from a Coolidge tube is able to pass through a 0 1 mm thick aluminum foil...
- Q You have already picked the doubt whats your immediate next step B D If the question and its solution is lengthy I will use Need time to solve template If...
- Q 29 If a uniformly charged spherical shell of radius 10 cm has a potential V at a point distant 5 cm from its centre the the potential at a point...
- Q Suppose we fill a glass flask with a liquid whose real expansivity is three times the linear expansivity of glass On heating Question Type Single Correct Type 1 2 3...
- Q The plates of a capacitor of capacitance 10 uF charged to 60 C are joined together by a wire of resistance 100 0 then i the charge on the capacitor...
- Q The position x of a particle with respect to time along x axis is given by equation x 91 1 where x is in meter and tin second What will...
- Q A capacitor of capacitance 500uF is charged at the rate of 100 C s The time in which the potential difference become 20 V is 100 s 2 50 s...
- Q 1 3 2 2 5 3 2 Three capacitors 3uF 10uF and 15 F are connected in series to a voltage source of 100 V The charge on 15 F...
- Q A B C discussion I will use the Ask student if online template to send a message the student I will solve the entire question anyway and post the solution...
- Q Between the plates of parallel plate condenser a plate of thickness t and dielectric constant K is placed In the rest of the space there is another plate of thickness...
- Q A man is inside a lift which goes up and comes down with same constant acceleration If the ratio of apparent weights in two cases is 3 1 what is...
- Q In the circuit given charge in uC on each capacitor in steady state will be 452 2 19 3 F HI 3 F 452 402 ww Fww 10V 12 3...
- Q A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates The quantity tha remains unchanged is Charge Q 2 Potential V 3 Capacity...
- Q A body with mass 5 kg is acted upon by a force F 37 41 N If its initial velocity at 1 0 Is v 6 12 ms then the...
- Q Which graph best represents the variation of electric potential as a function of distance from the centre of a uniformly charged solid sphere of charge of radius R V4 V4...
- Q Four point charges of charge 1 C each are placed at four corners of a square of side 2 m The work done in removing a charge 2 C fr...
- Q The plates of parallel plate capacitor are charged upto 100 V A 2 mm thick plate is inserted between the plates Th to maintain the same potential difference the distance...
- Q The velocity of a body as a function of time t is given as v 2ti t j m s What is force acting on the body at t 2...
- Q A ball moving with momentum of 15 kg ms strikes against wall at an angle of 60 with plane of wall and reflects back with same momentum at same angle...
- Q 17 ALI Five capacitors are connected to each other as shown ahead What is the potential drop and charge across 4 F capacitor D B HHH PH 18 F 6uF...
- Q The position time graph of a body of mass 3 kg is shown in figure The magnitude of impulse acting on the object at t 3 sis 12 m Position...
- Q Problem 19 Find the induced emf in the V shaped loop of Figure given below a Take B 0 1azWb m and u 2ax m s and assume that the...
- Q 1 100 joule 2 500 joule 3 1000 joule 4 300 joule A Carnot engine works between ice point and steam point Its efficiency will be 26 81 2 53...
- Q A body starts falling from rest from a large height If t 1 and fo are the time taken by the body to cover successive equal distances then 1 is...
- Q The geographic meridian is defined as The vertical plane containing the latitude circle and the axis of rotation of earth The horizontal plane containing the latitude circle and the axis...
- Q P Problem 4 The surfaces p 3 p 100 z 3 and p 5 p 130 z 4 5 define a closed surface a Find the enclosed volume b Find...
- Q A hollow conduct sphere is placed in an electric field produced by a point charg figure Let V and V be the electrostatic potential at points A and B respectively...
- Q Problem 9 Two straight nonconducting wires parallel to the z axis pass through points O and A as shown in figure below The wires carry equal and uniform charge density...
- Q Two point charges of 1 0 C are kept stationary 2 m apart How much work is needed to be done to bring them 1 m apart 2 1 4...
- Q When a horse pulls a wagon the force that causes the horse to move forward is the force Horse exerts on ground Horse exerts on wagon Wagon exerts on horse...
- Q The electrostatic potential existing in space is given by V xy yz zx volts where x y and z are in metres The angle made by electr field Eat 2...
- Q The motion of a particle is described by an equation x at bt where a 15 cm s and b 3 cm s The instantaneous speed of particle at 3...
- Q Electric Potential due to a Point Charge Electric Dipole System of Charges and Charged Bodies 4 Three isolated equal charges are placed at the three corners of an equilateral triangle...
- Q The displacement of a progressive wave is represented by y Asin kx ot where x is distance and t is time The dimension of w k is same those of...
- Q Which of the following statements is are true A A body can have constant speed with varying velocity B A body can have constant velocity with varying speed C A...
- Q An electric dipole of length 2 cm is placed with its axis making an angle of 30 to a uniform electric field 105 N C If it experiences a torque...
- Q In case of an unbiased PN junction 1 N side is at higher potential than P side 2 N side is at lower potential than P side 3 There is...
- Q 12 Two concentric hollow conducting spheres of radius r and R are shown The charge on outer shell is Q What charge should be given to inner sphere so that...
- Q Four charges of same magnitude q are placed at four corners of a square of side a The value of electric potential at the centre of the square will be...
- Q 1 127 C Efficiency of carnot engine is 100 if 1 T 273 K 2 T 0 K 3 T 273 K 2 The effriency of Carnot s engine operating...
- Q A charge of 10uC is placed at the origin x y coordinate system The potential differenc between two points 0 a and a 0 in volt will b 1 all...
- Q A rectangular coil 25 cm by 45 cm has 150 turns This coil produces a maximum emf of 75 V when it rotates with an angular speed of 190 rad...
- Q An a particle is accelerated from rest through a potential of V volts Its final kinetic energy is 4 90 mJ 1 2 eV 2 1 eV 3 4 eV...
- Q A gas is expanded from volume V to 2V under three different processes Process 1 is isobaric process process 2 is 0 isothermal and process 3 is adiabatic Let AU...
- Q 7A body is subjected to a constant force of 10 N towards the East and it is moving towards the West with the speed of 54 kmph If it is...
- Q 4 H and He respectively In a cyclic process shown in the figure an ideal gas is adiabatically taken from B and A the work done on the p during...
- Q 3 It is quite probable 4 Data are incomplete A Carnot s engine is made to work between 200 C and 0 C first and then between 0 C and...
- Q 1 1 x 105 N m 2 1 x 10 5 N m 3 1 4 N m A given quantity of a gas is at pressure P and absolute...
- Q MT 2 2 MLT 3 MLT 4 LT Some students find values of C and C for a gas in calorie gm mol K Which pair is most correct RPMT...
- Q In compound microscope the magnification is 95 and the distance of object from objective lens 1 3 8 cm and focal length of objective is 1 4 cm What is...
- Q HONCHHICHOLO C H I2 T THHITH WITH DOMOVIT 15 49 one statement of text book is two thermometers through the corks are used to note the temperature T2 of water...
- Q A hollow cylinder of mass 2kg and radius 10cm is rotatitng about its axis at 30 rpm Torque required to stop it after 2 rotations in Nm is 1 25...
- Q 3 W 0 Q 0 and AU Q 4 W 0 Q 0 and In an adiabatic process on a gas with y 1 4 the pressure is increased by...
- Q 1 1000 K 2 960 K 3 846K 4 754 K A scientist says that the efficiency of his heat engine which operates at source temperature 127 C and sink...
- Q 11 Two metal plates have potential difference of 300 V and are 1 cm apart A charged particle of mass 1 96 10 15 kg is held in equilibrium between...
- Q The potential at a point 0 1 m from an isolated point charge is 100 volt The nature of the point charge is 1 Positive 2 Negative 3 Zero 1...
- Q 3 at normal temperature and pressure 4 Q If a diatomic gas is supplied heat Q in a process it performs work process 2R 1 5 f 2 R 3...
- Q A mass of an ideal gas undergoes a reversible isothermal compression Its molecules will then have compared with initial state the same i root mean square velocity ii mean mometum...
- Q A conducting shell of radius R has charge Q Electrostatic force between two parts of the shell which are on either sides of a plane that is at a distance...
- Q If the door of a refrigerator is kept open then which of the following is ture 1 Room is cooled 2 Room is heated 3 Room is either cooled or...
- Q Two concentric conducting spheres of radii R and 2R are carrying charges Q and 2Q respectively If the charge on inner sphere is doubled the potential difference between the two...
- Q 14 A ball is dropped from a height of 5m if it rebound upto height of 1 8 m then the ratio of velocities of the ball after and before...
- Q Consider two processes on a system as shown in fig The volumes in the initial states are the same in the two porcesses and the volumes in the final states...
- Q A block of mass m is moving with initial velocity on horizontal frictionless surface Find the minimum value of velocity v so that the block will complete the vertical circle...
- Q For an ideal gas the heat capacity at constant pressure is larger than than that at constant volume because 1 positive work is done during expansion of the gas by...
- Q Given that the binding energies of the nuclei of element P and Q are Ep and EQ respectively and if two nuclei of element P fuse to give one nucleus...
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