Physics question and answers for June 27, 2024
- Q An isolated metallic spherical thin shell has given a charge Q as shown The parameter r is the distance to be measured from center of sphere Which of the following...
- Q Block 1 sits on top of block 2 Both of them have a mass of 1 kg The coefficients of friction between blocks 1 and 2 are 0 75 and...
- Q 3 Match List I with List II and select the correct answer using the codes given below the lists List I List II P Photodiode 1 Light into electrical energy...
- Q NS Two blocks each having a mass M rest on frictionless surface as shown in the figure If the pulleys are light and frictionless and M on the incline is...
- Q One mole of diatomic ideal gas undergoes a cyclic process ABC as shown in figure The process BC is adiabatic The temperatures at A B and C are 400 K...
- Q elar Anstyals through Continuous Exercise The figure shows three identical rods each of mass M and length L then the moment of inertia of the system about axis AB will...
- Q 4 a A few identical cells are first joined in series and then in parallel Under what condition will both the combination send the same current though the external resistance...
- Q A charge q 10 C of mass 2 g fig is free to move when released at a distance a from the fixed charge Q Calculate its speed when it...
- Q A circuit contains uncharged capacitor resistor and a battery as shown The switch is closed at t 0 and the system is allowed to attain steady state Now the switch...
- Q SolveLancer Test A dipole is kept at centre of a spherical metal shell as shown in the diagram What is the force on charg Q placed at a distance of...
- Q Q6 A stone of mass is 1 kg tied 1 point to the end of a string of length 1 m whirled in horizontal circle with a uniform angular velocity...
- Q A trianguler pulse moving at 2cm s on a rope approches an end at which it is free to slide on vertical pole What is the particle speed at the...
- Q A particle of mass m penetrates a medium at a speed to where it experiences a resistance proportional to the square of its speed with constant of proportionality k 0...
- Q Q8 Four point masses 1 kg 2 kg 3kg and 4 kg are located at the corner A B C and D respectively of a square ABCD of side 1m...
- Q In the circuit shown here the point C is kept connected to point A till the current flowing through the circuit becomes constant Afterward suddenly point C is disconnected from...
- Q 20 The plates of a parallel plate capacitor are 4 cm apart the first plate is at 300 V and the second plate at 100 V The voltage at 3...
- Q 21 Arod of length 2m is at temperature of 20 C The temperature is increased to 50 C If permitted expansion without thermal stress is 0 4mm the thermal stress...
- Q A charged particle q is shot towards another charged particle Q which is fixed with a speed u It approaches Q upto a closest distance r and then returns If...
- Q Q17 The angular velocity of a body changes from one revolution per 25 seconds to one revolution per seconds without applying any torque The ratio of its radius of gyration...
- Q A closed surface with two parallel bases is completely immersed in a uniform electric field 5 0x10 N C as shown in figure Find the electric flux through the surfaces...
- Q A force is applied on a rod of mass M and lenght L at a distance of L 4 from the hinge point then calculate the force is exerted by...
- Q SolveLancer Test When an object projected vertically up from top of the building then its average velocity is 10 m s and it took 4 sec to reach the ground...
- Q 4 None of the above The maximum electric field at a point on the axis of a 36 uniformly charged ring is E At how many points on the axis...
- Q A car moving with a velocity of 10 m s can be stopped by the application of a constant force Fin a distance of 20m If the velocity of the...
- Q A long wire having linear charge density is moving with constant velocity v along its length At an instant a point charge is at a distance r from the wire...
- Q A particle moves with simple harmonic motion in a straight line In first ts after starting from rest it trave a distance a and in next ts it travels 2a...
- Q Two metal spheres of capacitance C and C carry same charges They are put in contact and then separated the final charges Q and Q on them will satisfy 1...
- Q 3 f 12 cm 4 f 12 cm A beam of light is converging towards a point I on 9 a screen A plane glass plate whose thickness in the...
- Q A body cools from 80 C to 70 C in 5 mins What wil be its temperature in the next 5 mins Temperature of surroundings is 10 C 7 kan...
- Q Graph Electronegativity Y axis vs Atomic number X axis and analyze the patterns observed for elements 1 to 20 then examine your graph Find atomic numbers 3 11 and 19...
- Q A staircase consists of five steps each 20 cm high and 20 cm wide If horizontal velocity of a ball is sufficient to fall it from top stair to bottom...
- Q A ray of light is travelling in air falls on a transparent glass slab of refractive index3 If the refracted rays and reflected rays are mutually perpendicular What is angle...
- Q The Lagrangian of a particle of mass m moving in a plane is given by L 1 2 m v a xv yv where v and v are velocity components...
- Q Q5 A car is moving along a horizontal curve of radius 20 m and coefficient of friction between the road and wheels of the car is 0 25 If acceleration...
- Q A layer of oil 3 cm thick is floating on a layer of coloured 5 water 5 cm thick Refractive index of coloured water is 3 36 and apparent depth...
- Q Figure shows a particle of charge q and mass m moving with velocity v along the x axis enters a region of uniform magnetic field Minimum value of v so...
- Q In an n p n transistor circuit the collector current is 10 mA If 90 of the electrons emitted reach the collector 1992 2M a the emitter current will be...
- Q A constant force F is applied on the rod of mass M and length L placed between two conducting fixed rails in a uniform magnetic field A capacitor C is...
- Q Two events are separated by a distance of 6 x 105 km and the first event occurs 1 sec before the second event The interval between the two events a...
- Q If linear charge density of a wire of length L 37 af fx ata X depends on distance x from one end as Ap x Find total charge of wire...
- Q 2 20 Four capacitors each of 1 F are joined as shown in figure The equivalent capacitance between the points A and B is A C C C HH C...
- Q A person wears eye glasses with power of 5 5 D for distance viewing His doctor prescribes a remedy of 1 5 D for his near vision What should be...
- Q A converging lens of focal length 50 cm is placed co axially in contact with another lens of unknown focal length If the combination behaves like a diverging lens of...
- Q 46 A block of mass 3m is connected with a string which is wound on pulley of mass m and radius R as shown in the figure If the system...
- Q ALLEI Three charges Q q and q are placed at the 32 vertices of an equilateral triangle of side as shown in the figure If the net electrostatic energy of...
- Q The velocity of the car is expressed as V x 4x 3 3 and its time as t x 2x 5 Create a function model about the distance travelled of...
- Q Three concentric spherical shells have r adii a b and c a b e and have surface charge densities and o respectively If V Vn and Vc denote the potentials...
- Q A V tube of uniform cross sectional area A is filled with a liquid of density p as shown in figure Each arm has length 1 and inclined to vertical...
- Q the lengths of the 13 In Fig 11 24 two bars of the same metal are connected The length of the first bar is half of that of the second...
- Q Two balle A 2kg and B 4kg move towards each other and after collisio n moves backward If the initial velo cities of A and B were 2m s and...
- Q In case of a prism red light bends the le ast whereas in the case case of raindro p red light will have greater angle of dev iation i e...
- Q Three charges q 1 x 10 C q 2x 10 C 28 and q 3 x 10 C have been placed as shown in figure Then the net electric flux...
- Q Tyndall effect is observed when 1 Diameter of dispersed particles is not much smaller than the wavelength of light used ii The refractive indices of the dispersed phase and dispersion...
- Q ALLEN The focal lengths of the objective and eye piece 7 of a telescope are respectively 100 cm and 2 cm The moon subtends an angle of 0 5 at...
- Q A single phase full bridge inverter bed from 230V DC is connected to load R 10 Q L 0 03 H The inverter is operating in 180 square wave mode...
- Q 4 The air bubble cannot form a real image A bi convex lens is formed with two 5 thin plano convex lenses as shown in the figure Refractive index n...
- Q Topic Electrostatic from Suspended Ball System To problems based On Conservation of Mechanical Energy Gravitation From Gravitational Potential Energy to Problem Based On Kepler s Law A convex mirror of...
- Q For the given ac circuit source voltage is given by V 77 100 sin 10t 2 where V is in volt and t is in second 1 2 R 10...
- Q ALLEN An air bubble is inside water The refractive 4 index of water is 4 3 At what distance from the air bubble should a point object be placed so...
- Q Classr u m us Posi Velo dis B Answer time Rep at t 0 particle is atzero and slope dec becomes 0 and then ve Z Posi rep let us...
- Q Figure shows the electric lines of force emerging 25 from a charged body If the electric field at A and Bare E and E respectively and if the displacement between...
- Q A prism having an apex angle 4 and refraction 3 index 1 5 is located in front of a vertical plane mirror as shown in figure Through what total angle...
- Q 2 A plano convex thin lens of focal length 10cm is 12 silvered at its plane surface The distance d at which an object must be kept in order to...
- Q irection ater in 3 in 1 1 city of A 1 24 J 2 48 J 3 56 J 4 64 J A block of mass 5 kg is placed...
- Q 3 4 n 1 The speed of light in media M and M is 1 5 10 m s 2 and 2 0 x 10 m s respectively A ray...
- Q A common emitter amplifier circuit built using an n p n transistor is shown in the figure Its DC current gain is 250 Rc 1k2 and Vcc 10V What is...
- Q If magnitude of dispersive power of two lens are 6 0 024 and 0 036 then focal length be for aberration free combination 2 30 cm 45 cm 4 20...
- Q A zener diode having breakdown voltage equal to 10V is used in a voltage regulator circuit shown in figure The current flow the diode is A B C 10 mA...
- Q A converging beam of light is incident on a concave lens of focal length 20 cm In the absence of lens the beam converges at a point 10 cm behind...
- Q or more than one choice correct type Questions Consider the condition shown in the figure Pulley is massless and frictionless springs are mass Both the blocks are released with the...
- Q If a body covers first half of its journey with uniform speed v and the second hal of the journey with uniform speed v the the average speed is 1...
- Q ALLEN 4 The minimum energy required to launch a m kg 14 ma satellite from the earth s surface in circular orbit at an altitude 2R where R is the...
- Q A shortsighted person can read a book clearly at 8 a distance 10 cm from the eyes Find the lens required to read the book kept at 60 cm 1...
- Q The focal length of objective lens of astronomical telescope is 50 cm and tube length is 55 cm when final image is obtained at infinity The angular magnification of telescope...
- Q The focal length of eyepiece and objective lens of astronomical telescope are 2 5 cm and 50 cm respectively Then maximum angular magnificati will be O 20 O 22 0...
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