Physics question and answers for September 18, 2024
- Q 5 A projectile is fired at some angle 0 with speed such that it crosses two walls of equal height symmetrically as shown The angle of projection with horizontal is...
- Q If a semiconductor has an intrinsic carrier concentration of 141x 10 6 m when doped with 1021 m phosphorous atoms then the concentration 3 of holes m at room temperature...
- Q is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency The amplitude of oscillation is gradually increased The coin will leave contact with the platform...
- Q A solid sphere falls into a viscous AP liquid from a large height Which of the graphs shown best represents the variation of velocity of sphere in liquid with time...
- Q A force F x i x 2 N acts on a particle which moves in the XY plane a 1m Find the work done by F as it moves the...
- Q points A and Cof a circular conductor ABCD with O as centre and angle AOC 60 If B and B are the magnitude of the magnetic fields at O due...
- Q In a cubical box of volume V there are N molecules of a gas moving randomly If m is mass of each molecule and v2 is the mean square of...
- Q A horizontal metallic rod of mass m and length is supported by two vertical identical springs of spring constant K each and natural length fo A current i is flowing...
- Q In a Quincke s tube there are two positions where sound becomes minimum the sliding distance between the is 16 6 cm Find the freq of sound source Sound velocity...
- Q 6 The mass of a copper piece is 44 g A measuring cylinder contains water to a level of 12 mL The water level rises to 17 mL mark when...
- Q 171 The solids which have the negative temperature coefficient of resistance are metals insulators only semiconductors only insulators and semiconductors W 1 2 butt tember Sime 2
- Q Three particles start from origin at the same time with a velocity 2ms 1 along positive x axis the second with a velocity 6ms 1 along negative y axis Find...
- Q A cathode emits 1 8 x 10 7 electrons s and all the electrons reach the anode when it is given a positive potential of 400 V Given e 1...
- Q 61 A solenoid has length 60 x 10 2 m and its total number of turns is 2400 An iron rod is placed inside it along its axis The relative...
- Q 3 Fig 13 3 2 shows a circular motion The radius of the circle the period of revolution the initial position and the sense of revolution i e anticlockwise are...
- Q A bullet losses 1 n of its velocity in passing through a plank What is the least number of plan to stop the bullet Assuming constant retardation A car moving...
- Q 5 Two blocks of mass 2kg are connected by massless ideal spring constant k 10N m The upper block is suspended from roof by a light inextensible strings A The...
- Q of projection and B p a are projected simultaneously from the same point with the same speed but different angles A The line joining the positions of the particle at...
- Q 44 Twelve wires each having equal resistance r are equivalent resistance between the diagonally opposite to form a cube as shown in figure 32 E20 Find the points a and...
- Q A planet is moving in an elliptical orbit T U E and L are its kinetic energy potential energy total energy and magnitude of angular momentum respectively then which of...
- Q 7 A sphere P of mass m and velocity v undergoes oblique and elastic an collision with an identical sphere Q initially at rest The angle between the velocities of...
- Q The specific gravity of ice is 0 9 Find area in m of the smallest slab of ice of height 0 5 m floating in fresh water that will just...
- Q 1 A cup of tea cools from 65 5 C to 62 5 C in 1 minute in a room at 22 5 C How long will it take to...
- Q 5 A variable capacitor has n plates and the distance between two successive plates is d Determine its capacitance n 1 A d Ans C
- Q A current carrying circular loop of radius R is placed in the xy plane with centre at the origin Half of the loop with x 0 is now bent so...
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