AIIMS Past Exam Paper Physics - 2012
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Question 1 of 60
If the earth stops moving around its polar axis then what will be effect on body placed at south axis?CorrectIncorrect
Question 2 of 60
In air the value of the total electric flux emitted from unit positive charge isCorrectIncorrect
Question 3 of 60
A rod AB is 1m long. The temperature of its one end A is maintained at 100℃ and other end B at 10℃, the temperature at a distance of 60 cm from point B isCorrectIncorrect
Question 4 of 60
In designing, a beam for its use to support a load. The depression at centre is proportional to (where, Y is Young’s modulus)CorrectIncorrect
Question 5 of 60
A balloon is filled at 27℃ and 1atm pressure by 500 m3 He. At −3℃ and 0.5 atm pressure, the volume of He will beCorrectIncorrect
Question 6 of 60
The particle of mass 50 kg is at rest. The work done to accelerates it by 20 m/s in 10 s isCorrectIncorrect
Question 7 of 60
The moment of inertia of a circular loop of radius R, at a distance of R/2 around a rotating axis parallel to horizontal diameter of loop isCorrectIncorrect
Question 8 of 60
The ratio of radius of two bubbles is 2 : 1. What is the ratio excess pressure inside them?CorrectIncorrect
Question 9 of 60
In the capacitor of capacitance C, charge Q and energy W is stored. If charge is increased upto 2Q, the energy stored will beCorrectIncorrect
Question 10 of 60
The unit of thermal conductivity isCorrectIncorrect
Question 11 of 60
Photon and electron are given same energy (10−20J). Wavelength associated with photon and electron are λp and λe, the correct statement will beCorrectIncorrect
Question 12 of 60
The half-life of radioactive element is 600 yr. The fraction of sample that would remain after 3000 yr isCorrectIncorrect
Question 13 of 60
A particle moves along with x-axis. The position x of particle with respect to time t from origin given by x = b0 + b1t + b2t2. The acceleration of particle isCorrectIncorrect
Question 14 of 60
Root mean square speed of the molecules of ideal gas is v. If pressure is increased two times at constant temperature, then the rms speed will becomeCorrectIncorrect
Question 15 of 60
1 mole of gas occupies a volume of 200 mL at 100 mm pressure. What is the volume occupied by two moles of gas at 400 mm pressure and at same temperature?CorrectIncorrect
Question 16 of 60
A charged particle travels along a straight line with a speed v in a region where both electric field E and magnetic field B are present. It follows thatCorrectIncorrect
Question 17 of 60
What will be the wave velocity, if the radar gives 54 waves/min and wavelength of the given wave is 10 m?CorrectIncorrect
Question 18 of 60
A transformer of 100% efficiency has 200 turns in the primary coil and 40000 turns in secondary coil. It is connected to a 220 V main supply and secondary feeds to a 100 kΩ resistance. The potential difference per turn isCorrectIncorrect
Question 19 of 60
A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens is completely immersed in a liquid of refractive index 1.6, its focal length will beCorrectIncorrect
Question 20 of 60
SI unit of permittivity isCorrectIncorrect
Question 21 of 60
A spherical drop of capacitance 1 μF is broken into eight drops of equal radius. Then, the capacitance of each small drop isCorrectIncorrect
Question 22 of 60
A simple harmonic oscillator consists of a particle of mass m and an ideal spring with spring constant k. The particle oscillates with a time period T. The spring is cut into two equal parts. If one part oscillates with the same particle, the time period will beCorrectIncorrect
Question 23 of 60
The coefficient of viscosity for hot air isCorrectIncorrect
Question 24 of 60
An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy E0. Its potential energy isCorrectIncorrect
Question 25 of 60
A thin hollow sphere of mass m is completely filled with a liquid of mass m. When the sphere rolls with a velocity v, kinetic energy of the system is (neglect friction)CorrectIncorrect
Question 26 of 60
A non-conducting body floats in a liquid at 20℃ with 2/3 of its volume immersed in the liquid. When liquid temperature is increased to 100℃, 3/4 of body’s volume is immersed in the liquid. Then the coefficient of real expansion of the liquid is (neglecting the expansion of container of the liquid)CorrectIncorrect
Question 27 of 60
Two slabs A and B of different materials but of the same thickness are joined end to end to form a composite slab. The thermal conductivities of A and B are K1 are K2 respectively. A steady temperature difference of 12℃ is maintained across the composite slab. If the temperature difference across slabs A isCorrectIncorrect
Question 28 of 60
In short wave communication waves of which of following frequencies will be reflected back by the ionospheric layer having electron density 1011 per m3?CorrectIncorrect
Question 29 of 60
A body of mass 4 kg moving with velocity 12 m/s collides with another body of mass 6 kg at rest. If two bodies stick together after collision, then the loss of kinetic energy of system isCorrectIncorrect
Question 30 of 60
A marble block of mass of 2 kg lying on ice when given a velocity of 6 m/s is stopped by friction in 10 s. Then the coefficient of friction isCorrectIncorrect
Question 31 of 60
A body of mass 0.25 kg is projected with muzzle velocity 100 m/s from a tank of mass 100 kg. What is the recoil velocity of the tank?CorrectIncorrect
Question 32 of 60
A rocket with a lift-off mass 3.5 × 104 kg is blast upward with an initial acceleration of 10 m/s2. Then, the initial thrust of the blast isCorrectIncorrect
Question 33 of 60
A step down transformer is used on a 1000 V line to deliver 20 A at 120 V at the secondary coil. If the efficiency of the transformer is 80%, the current drawn from the line isCorrectIncorrect
Question 34 of 60
Question 35 of 60
Hydrogen atom excites energy level from fundamental state to n = 3. Number of spectrum lines according to Bohr isCorrectIncorrect
Question 36 of 60
A black body at a temperature of 2600 K has the wavelength corresponding to maximum emission . Assuming the moon to be perfectly black body the temperature of the moon, if the wavelength corresponding to maximum emission is isCorrectIncorrect
Question 37 of 60
The heat required to increase the temperature of 4 moles of a monoatomic ideal gas from 273 K to 473 K at constant volume isCorrectIncorrect
Question 38 of 60
A solid sphere rolls without slipping on the roof. The ratio of its rotational kinetic energy and its total kinetic energy isCorrectIncorrect
Question 39 of 60
6 Ω and 12 Ω resistors are connected in parallel. This combination is connected in series with a 10 V battery and 6Ω resistor. What is the potential difference between the terminals of the 12 Ω resistor?CorrectIncorrect
Question 40 of 60
Charge passing through a conductor of cross-section area A = 0.3 m2 is given by q = 3t2 + 5t + 2 in coulomb, where t is in second. What is the value of drift velocity at t =2s? (Given, n = 2 × 1025/m3)CorrectIncorrect
Question 41 of 60
Directions(Q Nos. 41-60) These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of the following responses.
Assertion When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time.
Reason Horizontal Velocity has no effect on the vertical direction.CorrectIncorrect
Question 42 of 60
Assertion Two similar trains are moving along the equatorial line with the same speed but in opposite direction. They will exert equal pressure on the rails.
Reason In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.CorrectIncorrect
Question 43 of 60
Assertion A table cloth can be pulled from a table without disloading the dishes.
Reason To every action there is an equal and opposite reaction.CorrectIncorrect
Question 44 of 60
Assertion Soft steel can be made red hot by continued hammering on it, but hard steel cannot.
Reason Energy transfer in case of soft is large as in hard steel.CorrectIncorrect
Question 45 of 60
Assertion The centre of mass of an electron and proton, when released moves faster towards proton.
Reason Proton is heavier than election.CorrectIncorrect
Question 46 of 60
Assertion A planet moves faster, when it is closer to the sun in its orbit and vice-versa.
Reason Orbital velocity in orbit of planet is constant.CorrectIncorrect
Question 47 of 60
Assertion A large force is required to drawn apart normally two glass plates enclosing a thin water film.
Reason Water works as glue and sticks two glass plates.CorrectIncorrect
Question 48 of 60
Assertion The water rises higher in a capillary tube of small diameter than in the capillary tube of large diameter.
Reason Height through which liquid rise in capillary tube inversely proportional to the capillary tube.CorrectIncorrect
Question 49 of 60
Assertion If the bob of a simple pendulum is kept in a horizontal electric field, its period of oscillation will remain same.
Reason If bob is charged and kept in horizontal electric field, then the time period will be decreased.CorrectIncorrect
Question 50 of 60
Assertion A thermoelectric refrigerator is based on the Peltier effect.
Reason A thermocouple may be used as a radiation detector.CorrectIncorrect
Question 51 of 60
Assertion The pattern and position of fringes always remain same even after the introduction of transparent medium in a path of one of the slit.
Reason The central fringe is bright or dark depends upon the initial phase difference between the two coherence sources.CorrectIncorrect
Question 52 of 60
Assertion Balmer series lies in the visible region of electromagnetic spectrum.CorrectIncorrect
Question 53 of 60
Assertion Corpuscular theory fails in explaining the velocities of light in air and water.
Reason According to corpuscular theory, light should travel faster in denser media than in rarer media.CorrectIncorrect
Question 54 of 60
Assertion Susceptibility is defined as the ratio of intensity of magnetization I to magnetic intensity H.
Reason Greater the value of susceptibility smaller the value of intensity of magnetization I.CorrectIncorrect
Question 55 of 60
Assertion It is not possible to have interference between the waves produced by two violins.
Reason For interference of two waves the phase difference between the waves must remain constant.CorrectIncorrect
Question 56 of 60
Assertion A metallic shield in the form of a hollow shell may be build to block an electric field.
Reason In a hollow spherical shield, the electric field inside it is zero at every point.CorrectIncorrect
Question 57 of 60
Assertion The molecules of a monoatomic gas has three degrees of freedom.
Reason The molecules of a diatomic gas has five degrees of freedom.CorrectIncorrect
Question 58 of 60
Assertion To observe diffraction of light the size of obstacle/aperture should be of the order of 10−7m.
Reason 10−7 m is the order of wavelength of visible light.CorrectIncorrect
Question 59 of 60
Assertion The resolving power of a telescope is more if the diameter of the objective lens is more.
Reason Objective lens of large diameter collects more light.CorrectIncorrect
Question 60 of 60
Assertion A beam of charged particles is employed in the treatment of cancer.
Reason Charged particles on passing through a material medium loss their energy by causing ionization of the atoms along their path.CorrectIncorrect