Physics question and answers for August 03, 2024
- Q X 3 Z y B A 25 A student in an experimental study of a process 1 2 3 on an ideal gas prepares two graphs to show relations between...
- Q Sir why the solution given in the book is a b c d since ther e is a force Ncostheta on wedge which will produce an acc eleration in the...
- Q Equal masses of three liquids are kept in three 30 identical cylindrical vessels A B and C The densities are PA PB Pc respectively where PA PB PC then the...
- Q A Beaker containing a liquid is kept inside a big 3 closed jar If the air inside the jar is continuously pumped out the pressure in the liquid near the...
- Q If the streams of protons closely move parallel to each other in the same direction then they 1 do not exert any force on one another 2 repel each other...
- Q Answer the following questions
- Q A space 2 5 mm wide between two large pla surfaces is filled with oil as shown in diagra Force required to drag a very thin plate of a of...
- Q 4 A voltmeter with resistance 500 2 is used to measure the emf of a cell of internal resistance 49 The percentage error voltmeter will be nearly in the reading...
- Q Q14 Reciprocal of bulk modulus is called compressibility If pressure experienced by certain volume of liquid increases by two times the compressibility becomes O A Decreases by half of its...
- Q A particle is thrown at an angle a sin 3 in air as shown in the figure The angle received from the inside water is water Only one correct answer...
- Q ght of the liquid in the beaker We have three beakers A B and C containing 21 three different liquids They are stirred vigorously and placed on a table Then...
- Q Two spherical metal balls of the same material with radii 0 2 cm and 0 3 cm are falling through a fluid at constant speeds If the speed of the...
- Q If internal energy U of an ideal gas depends on pressure p and volume V of the gas according to equation U 3pV which of the following conclusions can you...
- Q ALLEN 13 Two identical air bubbles are rising in water If they coalesce under isothermal condition to form a single air bubble the combined air bubble would have 1 Higher...
- Q 3 Infinite 4 Maximum but not infinite A displacement equation of a particle executes S H M is x sin oot then a Mean position x 0 1 b Mean...
- Q 3 When a cation leaves its normal position in the crystal and moves to some interstitial space the defect in the crystal is known as a Schottky defect b F...
- Q The figure shows an infinite ladder of resistances The resistance in the n th rung of the ladder counted from left is n n 1 ohms A B The effective...
- Q cm B 15 Two vertical conducting cylinders A and B of different cross sections are connected by a thin tube as shown An ideal gas is trapped in the cylinders...
- Q magnification produced by an astronomical telescope for normal adjustment is 10 and the length of the telescope is 1 1 m The magnification when the image is formed at the...
- Q A load W is to be raised by a rope from rest to rest through a height a the greatest tension which the rope can safely bear is nW Then...
- Q 99 Light is incident on a right angle prism as shown in figure On the hypotenuse of prism a drop of liquid is placed The refractive index of prism is...
- Q 15 Which of the following statement s is are 1 correct I Atoms or molecules in a fluid are arranged in a random manner II A fluid can withstand tangential...
- Q Q12 Two plane mirrors intersect at right angles as shown in figure A light ray incident on first mirror at a point 12 cm from their point of intersection The...
- Q 4 None of these 31 Two vessel of the same volume contain the 31 same gas at same temperature If pressure in the vessel are in ratio of 1 2...
- Q 1 Equal masses of water and a liquid of relative density two are mixed together then mixture has a relative density of 1 2 3 2 4 3 3 3...
- Q 12 cm s When water spreads on a glass plate the for between the water molecules and glass mo ecules is called 1 Surface tension 2 Cohesive force 3 Adhesive...
- Q 0 Identical balloons are connected through identical valves with two identical cylinders One cylinder contains gaseous helium and the other gaseous nitrogen Both the gases may be assumed ideal and...
- Q A particle moves along a straight line w ith its velocity related to position as v xxx2 where a constant If at t 0 x 0 and v 0 then...
- Q 4 volumes of A B and C will become equal at equilibrium A volume V of a viscous liquid flows per unit 8 time due to pressure head of AP...
- Q Q6 There is no SI base unit for area because O A We live in a three not a two dimensional world O B Area can be expressed in terms...
- Q 83 In young s double slit experiment 8th maximum of wavelength is at a distance x from its central maximum and 4th maximum of wavelength 22 is at a distance...
- Q A body is moving through a viscous fluid then choose the incorrect option 1 Viscous force acting on the body depends on density of body 2 Viscous force acting on...
- Q 4 Height of The given figure shows three soap bubbles A 7 B and C are prepared by blowing the capillary tube with stop cocks S S S and S...
- Q When an air bubble comes from the bottom of a lake to the top surface then its radius 1 Increases 2 Decreases 3 Does not change 4 Becomes zero
- Q Q1 Light is incident on a right angle prism as shown in figure On the hypotenuse of prism a drop of liquid is placed The refractive index of prism is...
- Q 1 When a thin transparent plate of refractive index 1 5 is introduced in one of the interfering beams a shift of 20 fringes is observed If it is replaced...
- Q In the circuit shown the switch S is shifted to position 2 from positi on 1 at t 0 having been in positi on 1 for a long time The...
- Q Q5 A perfect gas in a closed container is maintained at an initial pressure P If all the atoms are replaced by another species of mass half that of the...
- Q The figure below shows Atwood s machine in which two containers are connected by a cord of negligible mass passing over a frictionless pulley also of negligible mass At time...
- Q 3 A ball of mass 10 gram and charge 107C moves from point A whose potential is 500 V to another point B whose potential is zero The velocity of...
- Q 27 180 The diagram shows the energy levels for an electron in a certain atom Which transition shown represents the emission of photon with the maximum energy n 4 n...
- Q A particle oscillating under a force F KX bv is K and b are constants then oscillator is 1 Simple harmonic oscillator 2 Linear oscillator 3 Damped oscillator 4 Forced...
- Q 5 ncrease An ideal gas changes in states from 1 to 2 through three different processes A B C as shown 10 A B C 4 25 A V Then...
- Q Pre Medical Physics 22 A child climbs up a step waited f on step and comes down and process Choose x t graph for th X 0 M 1 2...
- Q ALLEN 6 Three tubes A B and C are connected to a 6 horizontal pipe in which an ideal liquid is flowing The radii of the tubes A B and...
- Q A solid is completely immersed in an ideal 5 liquid The force exerted by the liquid on the solid will 1 increase if it is pushed deeper inside the liquid...
- Q executing S H M is shown in fig given below Choose the correct statements vs time curve for a particle 15 displacement Ay 1 Phase of the oscillation is same...
- Q 79 In a glass prism one face is silvered A ray of light falls on the other face at an angle of 45 After refracting at the face it is...
- Q 5 Two conducting rods A and B of same length and cross sectional area are connected i In series ii In parallel as shown In both combination a temperature difference...
- Q Balloons with constant ascending velocity can be used to investigate wind velocities at various heights The given graph of elevation angle against time was obtained by observing a such balloon...
- Q A projectile thrown from ground at some angle is having velocities u and V at two points during it If u and are perpendicular to each other then the minimum...
- Q 4 Four pendulum A B C and D are suspended from the same elastic support as shown in figure A and C are of same length while B is smaller...
- Q A vessel contains a liquid of density p as shown in figure The gauge pressure at the point P is H 1 hpg 3 H h pg H h OF...
- Q 7 Initially a photon of wavelength falls on a photocathode and emits an electron of maximum energy E If the wavelength of the incident photon is changed to 22 the...
- Q Z dl R I O dl X dB 7dB P dBx X FIGURE 4 11 Magnetic field on the axis of a current carrying circular loop of radius R Shown...
- Q A ray of light is incident at an angle a at the boundary separating two transparent media The light is transmitted However if the angle of incidence is increased very...
- Q In case of water from 0 C to 4 C i Volume decreases and density of water is maximum at 4 C ii AW will be negative since volume decreases...
- Q 4 None of the above A piston is slowly pushed into a metal cylinder isothermally containing an ideal gas them incorrect statement is 1 Pressure of the gas increases 2...
- Q in example 15 2 can you explain last 4 steps of solution given in ncert h ow sin 80x0 3 3x20 converted tosin 36 12 WAVES VV Fig 15 7...
- Q A uniform rod of mass 10 kg and length 2 m is placed along x axis such that its one end is at the origin Moment of inertia of the...
- Q Q4 a The intrinsic carrier density at room temperature in Ge is 2 37 x 10 9 m if the electron and hole mobilities are 0 38 and 0 18...
- Q a given process on an ideal gas dW 0 24 dQ 0 then for the gas 1 Temp will decrease 2 Vol will increase 3 pressure will remain constant 4...
- Q A body is dropped from the top of a tower of height 3h The ratio of the intervals of time to cover the three equal heights h is Ot 12...
- Q The figure shows a system consisting of 1 a ring of outer radius 3R rolling clockwise without slipping on a horizontal surface with angular speed oo and ii an inner...
- Q As shown in figure two identical capacitors are connected to a battery of V volts in parallel When capacitors are fully charged their stored energy is U If the key...
- Q 6 Heat is flowing steadily from A to B 6 Temperature T at point P at distance x from A is such that A X 4 B 1 T decreases...
- Q The position co ordinates of a projectile thrown from ground are given by y 12t 5t2 m and x 5t m The initial speed of throw is Here t is...
- Q 6 In T S diagram ratio of slope of an isobaric 6 curve and an isochoric curve is 1 Y 2 Y 3 y 4 Zero T S 1 Y...
- Q Force experienced by a charged particle in an electromagnetic field is zero If the charge on the particle is q velocity of the particle is and the electric and magnetic...
- Q Unleashing Potential 11 A disc having radius a is rising on an inclined plane as shown in figure If the acceleration of disc 2 is gsine then find the value...
- Q 18 18 Pressure verses temperature graph of an ideal gas at constant volume is shown by a straight line A in figure If the mass of the gas is doubled...
- Q Two identical progressive waves moving in opposite direction superimpose to produce a stationary wave The wavelength of each progressive wave is X The wavelength of the stationary wave is A...
- Q 15 Two satellites of mass m and 2 m are revolving in two circular orbits of radii r and 2r around an imaginary planet on the surface of with gravitational...
- Q of mass M is in vertical position and that is able to move up or down without friction as shown in figure If the temperature is increased M 1 Both...
- Q Consider four heat reservoirs A B C D An 7 engine working between A and C has an efficiency which is mean of efficiencies of same engine working between AB...
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