Physics question and answers for August 22, 2024
- Q Q 1 A car travelled a distance of 900 km It developed an engine problem after travelling for some distance It travelled the remaining distance at 3 5th of its...
- Q A car drives around a circular track of diameter 128 m at a constant speed of 38 1 m s During the time it takes the car to travel 168...
- Q An ideal incomplete expansion cycle uses steam generated at 1 85 MPa The release condition is dry and saturated Exhaust steam is at 0 03 MPa and has 10 58...
- Q At a certain distance from a point charge in C the electric field is 200 V m and the potential is 800 V What is this distance O 8 m...
- Q The reaction time is the time interval in which a person Observes the incident Think about the observations Takes the action
- Q A ring of radius r has given a charge Q and uniformly distributed over its length If a charge q is placed at the centre The electric potential energy of...
- Q English Four charges 1 C 2 C 3 C and 4 uC are placed at 1 m 2 m 3 m and 4 m from origin The net electric potential...
- Q In the LC circuit at this time Q Q 00000 1 is increasing and Q is increasing 2 is increasing and Q is decreasing 3 is decreasing and Q is...
- Q A cylinder contains SO2 gas at a pressure of 4 1 atmosphere and at 47 C temperature The density of the gas in the cylinder is 0 2 g ml...
- Q When energy of a satellite Earth system is non zero positive then satellite w Move around the earth in circular orbit Just escape out Move around the earth in elliptical...
- Q An electric pump on the ground floor of a building takes 10 minute to fill a tank of 45 m with water The tank is 20 m above the water...
- Q Q A liquid drop of radius R is broken into n identical smaller drops of radius r Find i increase in surface energy ii decrease in temperature of liquid assume...
- Q 3 A massive sphere is fitted onto a light rod at a distance x from ground end and it is placed vertically Assume the end of rod on the ground...
- Q View in The charge to be put on a spherical conductor of radius 0 2 m to produce an electric field of 0 072 N C just above its surface...
- Q Two concentric uniformly charged spheres of radius 10 cm 20 cm are arranged as shown in the figure Potential difference between the spheres is 1 4 5 x 1011 V...
- Q If the electric potential of the inner shell is 10 volt that of the outer shell is 5 volt then the potential at the centre will be the shells are...
- Q A square ABCD of sides 1m rest on side AB A force of 100 N acting at 45 deg with AB acts at point C which is diagonally opposite to...
- Q A glass capillary tube is of the shape of truncated cone with an apex angle a so that its two ends have cross sections of different radii When dipped in...
- Q op 400 m s 2 600 m s 3 60 m s 4 None of these An ice berg of density 900 kg m is floating in water of density...
- Q 1 20 0 A log of wood of mass 120 Kg floats in water The weight that can be put on the raft to make it just sink should t...
- Q 1 Rises 2 Falls 3 A large ship can float but a steel needle sinks because of 1 Viscostiy 2 Surface tension 3 Density The Working of an atomizer depends...
- Q op 400 m s 2 600 m s 3 60 m s 4 An ice berg of density 900 kg m is floating in water of density 1000 Kg m...
- Q A steady current T flows in a small square loop of wire of side L in a horizontal plane The loop is now folded about its middle such that half...
- Q 1 isochoric process 2 isobaric process The horizontal flow of fluid depends upon 1 pressure difference 2 amount of fluid In steady horizontal flow 3 isothermal process 4 adiabatic process...
- Q Two particles each of mass m and charge q are attached to the two ends of a light rigid rod of length 2 R The rod is rotated at constant...
- Q 3 in a straight line perpendicular to a stream line 4 for ideal lequid stream line flow on a stream line Bernoulli s equation is based upon 3 isothermal process...
- Q 3 horizontally in line with its centre of gravity 4 may be anywhere A cork is suberged in water by a spring attached to the bottom of a bowl When...
- Q Determine the bandwidth of each of the amplifiers in Figure 12 43 Both op amps have an open loop gain of 100 dB and a unity gain bandwidth fr of...
- Q In order that a floating object be in a stable rotation at equilibrium its centre of buoyancy shoul 2 vertically below its centre of gravity 1 vertically above its centre...
- Q An infinitely long conductor PQR is bent to form a right angle as shown A current I flows through PQR The magnetic field due to this current at the point...
- Q gl 3 5x5x5x7 gf 4 4x4x4x6 gf Two bodies are in equilibrium when suspended in water from the arms of a balance The mass of one body is 36 its...
- Q 1 Point Total moment of various forces acting on the body is the vector sum of all moments Total moment of various forces acting on the body is the algebraic...
- Q 1 A collar B of mass 2 kg is constrained to move along a horizontal smooth and fixed circular track of radius 5 m The spring lying in the plane...
- Q The time dependence of a physical quantity p is given by p po exp at2 where a is constant and t is the time The constant a a is dimensionless...
- Q When a charged particle moving with velocity v is subjected to a magnetic field of induction B the force on it is non zero This implies that AIPMT 2006 1...
- Q When a current of 1 ampere is passed in a coil lying in the magnetic meridian then a magnetic needle at its centre gives some deflection If the current in...
- Q A toroid of mean radius a cross section radius r and total number of turns N It carries a current i The torque experienced by the toroid if a uniform...
- Q figure the circuit is switched on and the variable resistance is adjusted such that the bulb just glows Now if the circuit is switched off www Answer A Your Attempt...
- Q ddo The fraction of a floating object of volume V and density d above the surface of a liquid of density d will be 4 d do M dd 2...
- Q The Reynolds number of a flow is the ratio of 1 Gravity to viscous force 3 Inertia forces to viscous force 2 Gravity force to pressure force 4 Viscous forces...
- Q A circular coil of radius 20 cm and 20 turns of wire is mounted vertically with its plane in magnetic meridian A smal magnetic needle free to rotate about vertical...
- Q Bernoulli s equation is applicable to points 1 in a steadily flowing liquid 2 in a stream line 3 in a straight line perpendicular to a stream line 4 for...
- Q 1 B a 2 3 a 3 B a 4 a 3 A rectangular block of mass m and area of cross section A floats in a liquid of density...
- Q A combination of two simple harmonic motions with arbitrary amplitudes and phases is not necessarily periodic It is periodic only if frequency of one motion is an integral multiple of...
- Q In the following fig three paths of a particle crossing a nucleus N are shown The correct path is a and c a 2 a and b N b N...
- Q 1 The total momentum of a system of masses i e moving bodies in any one direction remains constant unless acted upon by an external force in that direction This...
- Q A hydrogen balloon released on the moon would 1 climb up with an acceleration of 9 8 m s 3 neither climb nor fall 2 climb up with an acceleration...
- Q a Soft iron is a conductor of electricity b It is a magnetic material c It is an alloy of iron d It is used for making permanent magents State...
- Q 6 A section of fixed smooth circular track of radius R in vertical plane is shown in the figure A block is released from position A and leaves the track...
- Q A proton and a deuteron moving with equal kinetic energies enter perpendicularly in a region of magnetic field B If r T and r are the radii of circular paths...
- Q Blood pressure is measured when the blood is pumping systolic and when the heart is resting diastolic When pressure readings are given the systolic is given first and healthy blood...
- Q A body of mass M and radius of gyration K is rotating with angular velocity w 3t f rad s The torque acting on it at 1 1 s will...
- Q Two particles of masses m and m2 are projected from the top of a tower The particle m is projected vertically downward with speed u and particle m2 is projected...
- Q A starter is required for a 220 V shunt motor The maximum allowable current is 55 A and the minimum current is about 35 A Find the number of sections...
- Q In a turbulent flow the velocity of the liquid molecules in contact with the walls of the tube is 1 Zero 2 Maximum 3 Equal to critical velocity 4 May...
- Q kg 3 7 5 kg Two vessels A and B of different shapes have the same base area and are filled with water up to the same height h figure...
- Q 3 2 time that in the other pipe Water enters through end A with speed v and leaves through end B with speed v of a cylindrical tube AB The...
- Q Two moles of an ideal gas undergoes the cyclic process abcda which is shown in the internal energy vs volume diagram The temperatures of the gas at b and d...
- Q Height of the liquid Air is steaming past a horizontal air plane wing such that its speed in 120 m s over the upper surface and 90 m s at...
- Q A hemispherical bowl just floats without sinking in a liquid of density 1 2 x 10 kg m If outer diameter and the density of the bowl are 1 m...
- Q A golfer hits a shot to an elevated green The ball leaves the club with an initial speed of 16 m s at an angle of 58 above the horizontal...
- Q A rectangular block is 5 cm x 5 cm x 10 cm in size The block is floating in water with 5 em side vertical If it flom with 10...
- Q A siphon in use is demonstrated in the following figure The density of the liquid flowing in siphon is 1 5 gmvcc The pressure difference between the point P and...
- Q A body is just floating on the surface of a liquid The density of the body is same as that of the liquid The body slightly pushed down What will...
- Q A bot carrying steel balls is floating on the surface of water in a tank If the ball are thrown into the tank on how will it affect the level...
- Q A 6 pole 50 Hz 3 phase induction motor running on full load develops a useful torque o 160 Nm when the rotor emf makes 120 complete cycles per minute...
- Q A fire hose can expel water at a rate of 9 5 kg s 150 gallons minute with a speed of 24 m s How much force must the firefighters...
- Q In a situation the contact force by a rough horizontal surface on a body placed on it has constant magnitude if the angle between this force and the vertical is...
- Q Air is blown through a hole a closed pope containing liquid Then the pressure will 1 Increase on sides 2 Increase downwards 3 Increase in all direction 4 Never increases
- Q A particle is doing SHM with a time period of 0 80 sec and amplitude of 10 cm At t 0 it is 5 0 cm to the left of...
- Q t 0 98 m s m s A body A of mass 1kg rests on a smooth surface Another body B of mass 0 2 kg is placed over A...
- Q 1 0 02 2 0 03 A block rests on a rough inclined plane making an angle of 30 with the horizontal The coefficient of static friction between the block...
- Q D Og mass on a 20 cm long string oscillates as a pendulum It has a speed of 0 28 m s as it passes through the lowest point What...
- Q 3 936 ms 2 2 936 ms 3 ms A gramophone record is revolving with an angular velocity o A coin is placed at a distance r from the of...
- Q gu A block of mass m is in contact with the cart C as shown in the figure The coeff tion between the block and the cart is u The...
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