Physics question and answers for June 28, 2024
- Q A cylinder of radius R and length L is placed in a 45 uniform electric field E parallel to the cylinder axis The total flux from the surface of the...
- Q Consider the four statements given below about the function f x x x in the range x o Which one of the following statements is correct P the plot of...
- Q Choose incorrect statements An inductor of inductance L capacitance C and resistance R are connected in series to a variab sinusoidal voltage supply whose frequency is variable but rms voltage...
- Q A mass of 1 kg is suspended by a thread It is lifted up with an acceleration of 4 9 m s 2 and then lowered with an acceleration of...
- Q A piston containing an ideal gas is originally in the state X see figure The gas is taken through a thermal cycle X Y X as shown The work done...
- Q If work done in increasing the size of rectangular soap film with dimensions 8 cm x 3 75 cm to 10 cm x 6 cm is 2 10 J The...
- Q 1 THE FORCE EXPERIENCED BY A POSITIVE CHARGE q MOVING WITH A VELOCITY V PERPENDICULAR GIVEN BY TO THE DIRECTION OF MAGNETIC FIELD B IS O qvB OqvB O Zero...
- Q A ball is projected from ground at angle 0 with the horizontal After t 1 s it is moving at 45 with the horizontal and after t 2 second it...
- Q An object moves along the x axis according to the equation x 2 80 2 00 3 00 where x is in meters and t is in seconds a Determine...
- Q The small piston of a hydraulic lift has a cross sectional area of 3 cm and its large piston has a cross sectional area of 200 cm What force must...
- Q The hyperfine splitting of the spectral lines of an atom is due to a the coupling between the spins of two or more electrons b the coupling between the spins...
- Q Q is ahead of P by 350 m A car A is travelling along a straight level road with a uniform speed of 60 km h It is followed by...
- Q The galvanometer shown in figure has resistance 5 0 Main current of 6 A passes in circuit as shown If current through galvanometer is lg then 6 A 10 10...
- Q d 1 1 3 A motor car is moving towards a vertical wall The driver observes that the frequency of the sound of his horn changes from 440 Hz to...
- Q STAT A cubic cell consists of two atoms of masses m and m m m with m and m atoms situated on alternate planes Assuming only nearest neighbor interactions the...
- Q A particle P is formed due to a completely inelastic collision of particles x and y having de Broglie wavelengths y and respectively If x and y were moving in...
- Q 2 In the circuit shown figure C luF and C 2uF Capacitor C is charged to 100V and C to volts After charging they are con nected as shown When...
- Q Point charge q 2 C and q 1 C are kept at 40 points x 0 and x 6 respectively Electrical potential will be zero at points 1 x 2...
- Q 28 The reading of voltmeter S in the circuit as shown in figure will be 12 V 1 4 V 3 9 V 20 2 wwww 60 2 ww 30...
- Q Q 1 The given figure shows an inductor and resistance fixed on a conducting wire A movable wire PQ starts moving on the fixed rails from t 0 with constant...
- Q A second order phase transition is one in which a the plot of entropy as a function of temperature shows a discontinuity b the plot of specific heat as a...
- Q A longitudinal harmonic wave is travelling along positive x direction The amplitude wavelength and frequency of the wave are 8 0 x 103 m 12 cm and 6800 Hz respectively...
- Q A uniformly charged ring of radius R has Q Electric field at axis of ring at distance from its centre is 1 2 3 kQ R2 2 KQ 3 3...
- Q All surfaces are smooth and the system is released from rest The block 2kg slides down an inclined surface by 10m Then the horizontal displacement of A wedge is 2...
- Q A particle performs SHM with a period T and amplitude a The mean velocity of the particle over the time interval during which it travels a distance a 2 from...
- Q A stone weighs 750 N in air and has an apparent weight of 250 N in water The buoyant force experienced by the stone is Select one O a 100...
- Q A particle is moving with constant speed v in xy plane as shown in figure The magnitude of its angular velocity about point O is ya 1 0 b of...
- Q 9 5VWww 2 7mVww A 430 ID 1101924461 Vous 1101924461 NOTE SCREENSHOT PROHIBITED ID 1101924461 Adder Amplifier out put Voltage 48 8 mV
- Q The commutator x P2 where x and Pare position and momentum operators respectively is d 2ihxP a 2i P b i P c 2ihxP A spin half particle is in...
- Q In a thermodynamic process pressure of fixed mass of a gas is changed in such a manner that the gas releases 20 J of heat and 8 J of work...
- Q Q20 A solid sphere has the same mass and radius as a thin spherical shell The ratio between their moment of inertia about a diameter is O A B a...
- Q A chain of mass m 4 kg and length 2 m rests on a rough horizontal surface such that some part of it hangs vertically when a small jerk is...
- Q Light is travelling from kerosene to air Its speed in kerosene is 2 08 x 108 m s Find the critical angle of kerosene air boundary Use nair 1 c...
- Q An ideal gas is contained in a 3 5 L container at a temperature of 28 C If pressure is k constant what is the final volume of the gas...
- Q 26 In the given figure F 200 N m 20 kg m 25 kg g 10 m s Find the friction acting on the block of mass m Take g...
- Q If a star has a parallax of 0 015 second of arc and an apparent magnitude of 8 how far away is it and what is its absolute magnitude distance...
- Q A liquid flows through two horizontal sections of tubing joined end to end In the first section the cross sectional area is 12 0 cm the flow speed is 250...
- Q An object is acted on by the force shown in the figure 0 8 Z 0 6 Force F N 0 4 0 2 0 0 25 0 50 Position...
- Q 12 When an additional resistance of 1980 2 is connected in series with a voltmeter then the scale division reads 100 times larger value Resistance of the voltmeter is a...
- Q The specific gravity of glass is 4 28 Its density is equal to Use Density of water 1 0 103 kg m Select one O a 4280 kg m O...
- Q 5 A solid ball is fully immersed in a liquid contained in a cylinder The radius of cylinder is R A piston weightless is placed on the liquid surface If...
- Q A virtual erect and magnified image of a real object can be formed by A Plane mirror B Concave mirror C Convex mirror D Concave lens E Convex lens The...
- Q Retraction of light through a triangular glass prism is shown in figure The angle of incidence angle of emergence and angle of deviation are represented by respectively for y x...
- Q Consider a uniform solid sphere of charge Q and radius R What is the electrostatic potential energy stored in the region O r R where r represents distance from centre...
- Q Two identical cells connected in series send 10 A current through a 50 resistor When they are connected in parallel they send 8 A current through same resistance What is...
- Q If an object is placed at a distance of 30 cm from a lens a virtual image is formed If the magnification of the image is find the position of...
- Q 16 An astronaut orbiting the earth in a circular orbit 1000 km above the surface of earth gently drops a ball out of spaceship The ball will Fall vertically down...
- Q The system shown in figure is in equilibrium Masses m and m are 2 kg and 2 5 kg respectively Spring constants K K and K are 200 Nm 1000...
- Q The incorrect statement among the following is 1 Sunlight is not always required for a solar cell 2 Semiconductors with band gap close to 1 5 eV are ideal material...
- Q Given a wave with the dispersion relation w ck m for k 0 and m 0 which one of the following is true a The group velocity is greater than...
- Q A flywheel of mass 50 kg and radius of gyration about its axis of rotation of 0 5 m is acted upon by a constant torque of 12 5 N...
- Q An electromagnetic wave is propagating in free space in the z direction If the electric field is given by E cos t kz i where oot ck then the magnetic...
- Q For a particle projected from horizontal surface the ratio of range to maximum height reached is 0 is angle of projection with vertical 1 4 tane 3 tan 0 4...
- Q Q18 The radius of gyration of a 1 point disc of mass 100 gm and radius 5 cm about an axis passing through its centre of gravity and perpendicular to...
- Q A charge particle having charge 2 C is thrown with velocity of 21 31 m s inside a region having 2 N C and magnetic field 5k T The Lorentz...
- Q Solvelancer Test A and starts from rest and moves with acceleration ratio 49 If dince covered by A is 25 of distance covered by then find the ratio of time...
- Q Bullets of 0 03 kg mass each hit a plate at a rate of 200 bullets per second with velocity of 50 m s and reflect back with velocity of...
- Q Question No 8 Single Correct A A A rocket is launched upward with an acceleration of 5 m s2 initial velocity is zero after 30 seconds its fuel is finished...
- Q Q19 A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to the plane...
- Q In the equation of angular displacement of a particle moving on a circular path is given as 0 2t 0 5 0 is in radian and in second The angular...
- Q Question No 21 Single Correct A A If particles of mass 1 kg 2 kg and 3 kg are placed at 1 0 1 2 2 3 and 1 3...
- Q The equation of particle executing simple harmonic T motion is x 5m sin s t Write down 3 the amplitude time period and maximum speed Also find the velocity at...
- Q 10 A rod with non uniform density is placed along x axis such that the end A of the rod is at the origin If the density of the rod...
- Q Question No 15 Single Correct A A B C Fixed 37 777 For the given arrangement find force of friction on the block D 24 N 4 kg 12 8...
- Q In the figure shown sound waves A and B both of A wavelength are initially in phase and travelling rightward as indicated by the two rays Wave A is reflected...
- Q Two spherical bodies having masses M and 3 M and radii r and 4r respectively are released in free space from rest such that the initial separation between their centres...
- Q In the shown arrangement particle at C connected by the help of two ideal strings is moving with minimum possible speed in form of conical pendulum as shown maintaining the...
- Q 8 A block of mass 10kg is initially at rest on a horizontal rough surface At a time t 0 a time dependent force F acts on it horizontally as...
- Q A body moves from x 1 to x 4 and then to x 4 Which of the following is correct 1 Its displacement is zero 2 The distance covered by...
- Q Single Correct A If mass M time T and energy E are taken to be fundamental quantity then dimensional formula for length is ME T B EM 21 2 E...
- Q NEET Full Course Material Two cells of emfs E and E E E are connected as shown in figure a 3 1 2 3 When a potentiometer is connected between...
- Q Why not linear momentum since acc to Newton first law without external forces momentum does not change Q11 Internal forces can change for a system rakas ara ukalda Por faz...
- Q It s for a test Problem A sine wave travels in the positive x direction It has an amplitude of 1 50 cm a speed of 300 m s and...
- Q The length of vibrating string is 75 mm and fundamental frequency of vibration is 530 Hz The load applied to string is 1 kg hence mass per unit length of...
- Q Find the capacitance of a multiple plate capacitor made from 30 pairs of 10x15mm rectangular plates separated by 50nm of polystyrene k 2 6 If a 4uF capacitor is connected...
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