Physics question and answers for July 08, 2024
- Q There may or may not be mass at the centre of mass of an object The linear velocity of each point of rigid body rotating about a given axis is...
- Q Same mass of copper is drawn into two wires of radius 1 mm and 3 mm Two wires are then connected in series and current is passed through them Heat...
- Q 4 5 A moderator C control rods One thousand nuclei of U 235 fission in given time The total number of neutrons emitted in these fission reactions is close to...
- Q 25 Eight equal point charges are placed at corners of cube of side length a The potential and electric fie magnitude at the centre of cube will be 4q 1...
- Q From a uniform circular disc of radius R and mass 9M a small R disc of radius is removed as shown in the figure The 3 moment of inertia of...
- Q Two identical sources P and Q emit light waves in same phase and of same wavelength Distance between P and Q is 32 The maximum distance from P along the...
- Q A rod of mass 3 kg with length of 2 m is rotating about an axis perpendicular to its length and passing through its centre of mass If the angular...
- Q 5 n identical cells are joined correctly in series with another two cells A and B with reverse polarities Emf of each cell is E and internal resistance is r...
- Q Multiple Isotopes in a Radioactive Sample A sample of uranium is a mixture of three isotopes U234 U235 and U238 present in ratio of 0 006 0 71 and 99...
- Q spring as shown in figure The magnitudes of acceleration of A and B immediately after the spring is cut are respectively Junge 3m m LE 3m g g g g...
- Q 15 The volume V of a monatomic gas varies with its temperature T as shown in the graph The ratio of work done by the gas to the heat absorbed...
- Q SI unit of electric current ampere is the current which when flows through each of two parallel wires spaced 1 m apart in vacuum and of infinite length will give...
- Q A ball is fired perpendicularly from an inclined plane towards another plane as shown If it also strikes the second plane perpendicularly Find i Time of flight ii Velocity iii...
- Q 43 A 10 eV electron is circulating in a plane at right angles to a uniform field of magnetic induction 10 Wb m 1 0 gauss the orbital radius c...
- Q 42 Pendulum A is x cm shorter than a seconds pen dulum and pendulum B is x cm longer than the seconds pendulum The ratio of their time periods is...
- Q An external resistance R is connected across a battery of e m f E and internal resistance r Determine the condition for which the production of heat in R will...
- Q Which of the following graph best represents the variation of impedance IZ of parallel LC circuit with co 1Z1 IZI 1 3 121 LC LC 00 4 N 0 121...
- Q Electrical Energy Power Potential Difference 10 In the circuit shown the thermal power dissipated in R is P The thermal power dissipated in R is R R 1 P 3...
- Q 23 If the electric potential in a region is represented as V 2x 3y 4z Then electric field vector will written as 1 2 3 4k 3 2 3 4k...
- Q An air cored solenoid having a length of 30 cm whose area is 25 cm and the number of turns is 500 And the solenoid has carried a current of...
- Q A beam of unpolarised light of intensity is passed through a polaroid A and then through another polaroid B which is oriented so that its principal plane makes an angle...
- Q A body cools from a temperature 3T to 2T in 10 minutes The room temperature is T Assume that Newton s law of cooling is applicable The temperature of the...
- Q 10 In an am 0 2 of main current pass through the galvanometer If resistance galvanometer is G the resistance of ammet will be a c 1 499 G 1...
- Q Two infinite long parallel wires A and B carrying currer 10 A and 20 A respectively in opposite direction are placed at a separation of 30 cm The magnetic field...
- Q De Exitation by Emitting Two Photons A hydrogen like atom of atomic number Z is in a higher excited state of quantum number n The excited atom can make a...
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