Physics question and answers for June 25, 2024
- Q The conductor in the figure has an excess charge of 3 72 mC If a 2 5 mC point charge is placed in the cavity what is the net charge...
- Q A circular road of radius 1000 m has banking angle 45 The maximum safe speed of a car having mass 2000 kg will be if the coefficient of friction between...
- Q diagram and pls explain solution in easy and understanda le way A 2 kg block moving with 10 m s strikes a spring of spring constant N m attached to...
- Q 5 Calculate simple interest and compound interest assuming that principal amount is 10 000 interest rate is 9 for three years What is the amount different between compound and simple...
- Q A force gives an object of m an acceleration of 12 m s and an object of mass m an acceleration of 10 m s The ratio of accelerations the...
- Q An astronomical telescope has magnification having magnitude 5 for distance objects The separation between objective and eye piece is 36 cm and final image is formed a infinity The focal...
- Q A convex surface of radius of curvature 40 cm separates tw 4 medium of refractive indices and 1 50 An object is kept 3 in the first medium at distance...
- Q 4 A heater of constant power is used to boil water in a pot During heating temperature of water increases from 60 C to 65 C in 1 0 min...
- Q Find the ratio of least separation between two points to be distinguished for same objective by a microscope for light of wavelength 5000 and electrons accelerated through 100 V used...
- Q Consider a circuit shown in the figure The switch S is closed at t 0 Find the currents as a function of time through a the inductor and b the...
- Q Four capacitors each of capacitance C are connected as shown in the figure The ratio of capacitance between P and R to the capacitance between P and Q is C...
- Q 3 In ac circuit when ac ammeter is connected it reads i current If a student uses de ammeter in place of ac ammeter the reading in the de ammeter...
- Q 3 A metal cylinder is placed upright on horizontal top of an ice slab of temperature 0 C Initial temperature of the cylinder is 50 C The vertical curved surface...
- Q 3 A particle with total energy E is moving in a potential energy region U x Motion of the particle is restricted to the region when a U x E...
- Q A liquid of density p flows along a horizontal pipe of uniform cross section A with a velocity v through a right angled bend as shown in Fig What force...
- Q The height of a cylindert s decreasing at a constant rate of 4 cm per second The volume remains a constant 17 cubic cm At the instant when the radius...
- Q A disc is placed on the surface of pond with liquid of 5 refractive index A source of light is placed 4 m below the 3 surface What is minimum...
- Q A sample of radioactive element has a masss of 10 g at an instant t 0 The approximate mass of this element in the sample after two mean lives is...
- Q An object of mass 500g initially at rest is acted upon by a variable force whose X component varies with x in the manner shown The velocities of the object...
- Q A ball with a speed of 9 m s collides with another identical ball at rest Afte the collision the direction of each ball makes an angle of 30 with...
- Q When an incandescent electric bulb glows A the electric energy is completely converted into light energy B the electric energy is partly converted into light energy and partly into heat...
- Q The moment of inertia of a uniform thin rod about its perpendicular bisector is I If the temperature of the rod is increased by At the moment of inertia about...
- Q 5 A force acts on a 2 kg object so that its position is given as a function of time as x 31 5 What is the work done by...
- Q A particle of mass m is executing simple harmonic motion about its mean position If A is the amplitude and T is the period of S H M then the...
- Q A uniform electric field of 100 N C exists in XY plane making an angle 60 with x direction Consider points A 1 2 3 m and B 3 2...
- Q Match the corresponding entries of Column 1 with Column 11 Where m is the magnification produced by the mirror Column 1 A m 2 1 2 C m 2 B...
- Q A simple harmonic progressive wave is represented as Y A sin 2 t nt c cm It the maximum particle velocity is four times the wave velocity then the wavelength...
- Q For a short period of time the frictional driving force acting on the wheels of the 2 6 Mg van is I 6002 N where is in seconds Figure 1...
- Q 35 A R 1502 www R 1002 www R 300 wwwww Find the resistance across AB R 2002 www B
- Q 17 Two uniform rods of mass m and length I form a cross moment of inertia of cross about an axis parallel to CD passing through A is ml 3...
- Q A spinning ball is moving in a direction opposite to the direction of the wind The ball moves in a curved path as a the pressure at the top and...
- Q The current in the given ciruit is 4 8 VT R 302 ww R 60 1 1 6 A 2 2 A 3 0 32 A 4 3 2 A...
- Q Two particles are in SHM in a straight line Amplitude A and time period T of both the particles are equal At time t 0 one particle is at displacement...
- Q S and S are two slits in horizontal fixed plane on which light of wavelength 6000 A is incident d 1 mm D 1 0 m O is the origin...
- Q The length of a metal wire is when the tension in it is F and when the tension becomes F Find the natural length of wire L F F 2...
- Q A particle is projected with velocity vo along x axis A damping force is acting on the particle which is proportional to the square of the distance from the origin...
- Q ing square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides A magnetic induction B constant in...
- Q as shown in figure the distance travelled by the car in the 25s is A 750 m B 875 m C 500 m D 975 m The acceleration of a...
- Q 16 An 80 6 nucleus is spherical having radius R surface area A and volume V According to empirical observations the volume of the so Sn 28 nucleus assumed to...
- Q An R C series circuit is charged in two ways In first case it is connected to the terminals of a cell of emf 2E In second case it is...
- Q A parallel circuit consists of the two ideal inductances L and 2L and a resistance R as shown At t 0 the same current 101 is flowing in both the...
- Q A particle moves in a straight line and its position x at time t is given by x 2 t Its acceleration is given by 2 1 X 3 1...
- Q 26 A uniform wire of mass M length L area of cross section A and Young s modulus Y is suspende from the ceiling Elongation of the wire due to...
- Q A particle performs S H M from the mean position Its amplitude is A and total 3E energy is E At a perticular instant its kinetic energy is The displacement...
- Q he figure below shows the schematic for a mass spectrometer which consists of a velocity selector and a deflection chamber The magnitude of the magnetic field in both the velocity...
- Q cylindrical region of radius 10 cm as shown in figure A uniform wire of length 80 cm and resistance 4 0 2 is bent into a square frame and is...
- Q A squirrel of mass m climbs slowly on a thin straight vertical rod of length L Mass of the rod is negligible as compared to that of the squirrel and...
- Q A coil having n turns and resistance R2 is connected with a galvanometer of resistance 4RG combination is moved in time t seconds from a magnetic flux weber to weber...
- Q A fully charged capacitor C with intial charge qo is connected to a coil of self inductance L at t 0 The time at which the energy is stored equally...
- Q Two polarising sheets are placed with their plane parallel so that light intensity of transmitted light is maximum Through what angle must either sheet be turned so that light intensity...
- Q 3 2 Find the distance between the images formed by the concave mirror due to this light In Fig 1 372 L is a converging lens of focal length 10...
- Q Find out the value of T in the given diagram 1 12 N 37 2 8 N 3 6 N 4 3 N 35 37 1 12 N 2 8...
- Q The speed of sound in oxygen is 315 ms At the same temperature its speed in a mixture of oxygen and nitrogen in the ratio 1 4 by volume is...
- Q At resonance in a series LCR circuit which of the following statements is true 1 Current in the circuit is maximum and phase difference between E and I is 2...
- Q A coil has an area of 0 05 m and it has 800 turns It is placed perpendicularly in a magnetic field of strength 4 x 105Wb m it is...
- Q A sample of hydrogen atoms de excites from 6th excited state to the ground state in one or more electronic transitions If no spectral line is obtained in the Paschen...
- Q A tangent galvanometer has a coil of 25 turns and a radius of 15 cm The horizontal component of the earth s magnetic field is 3 10 T The current...
- Q 44 Potential difference across AB in the network shown in figure is 1 2 V 2 3 V 3 1 V 4 1 5 V ww 30 92 www 30...
- Q 7 1 50 N 2 25 N 3 500 N 4 10 N Three blocks with masses m 2m and 3m are connected by strings as shown in the figure...
- Q Illustration 3 6 A plate of mass 10 g is in in air due to the force exerted by equilibrium a light beam on the plate Calculate power of the...
- Q 5 A particle of mass m 1 kg is lying at rest on x axis experiences a net force given by I F x 3x 2 Newton where x is...
- Q A coil of inductance 50 H and resistance 0 5 2 is connected to a battery of emf 5 V A resistance of 10 2 is connected parallel to the...
- Q 9 Two capillary tubes A and B are immersed in water One is straight and the other is in the form of a rectangular U tube as shown in figure...
- Q 10 Find the effective resistance between points A and B BREDBE www 19 10 192 wwww 192 1 3 1 C L wwww 192 192 www www 192 192 wwww...
- Q An electric field applied along the length of a long cylinder produces a polarization P The depolarization field produced in this configuration is a 4 P 3 b 4 P...
- Q Two heater wires of same length are first connected in series and then in parallel The ratio of the amounts of heat produced in two cases will be 2 1...
- Q A bullet of mass m is fired horizontally into a large sphere of mass M and radius R resting on a smooth horizontal table m M A The bullet hits...
- Q A solenoid 1 5 m long and 0 4 cm in diameter possesses 10 turns per cm length A current of 5 A flows through it The magnetic field at...
- Q Forces acting on a particle have magnitudes of 14 7 and 7 N acts in the direction of vectors 61 2 3k 3 2 6 k and 2 3 1...
- Q Answer Q No 4 and 5 by appropriate matching the lists based on the information given in the paragra pole of a silvered equiconvex lens as shown List I contains...
- Q 0 375 x 18 x 10 6 7 5 x 10 joules A magnetic dipole of magnetic moment M is placed on the axis of a current carrying circular la...
- Q Two identical wires A B have the same length L carry the same current I Wire A is bent into a circle of radius R and wire B is bent...
- Q In the circuit in figure we have 2 100V R 200 R 10 Q R3 400 and R2 R4 30 Q Find the reading of the ammeter in A Disregard...
- Q Two bodies A and B masses 10 kg and 15 kg 36 respectively kept on a smooth horizontal surface are tied to the ends of a light string If T...
- Q The rms value of an alternating current which when passed through a resistor produces heat three times of that produced by a direct current of 2 A in the same...
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