AIPMT 2006 Prelims

185 Questions • 185 Minutes • 2006

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When photons of energy hν fall on an aluminium plate (of work function E₀), photoelectrons of maximum kinetic energy K are ejected. If the frequency of the radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be :

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A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series with a condenser of capacitative reactance 25 Ω. The combination is connected to an a.c. source of 110 V. The power factor of the circuit is :

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A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of 30° with the wall. It is reflected with the same speed and at the same angle. If the ball is in contact with the wall for 0.25 s, the average force acting on the wall is :

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The momentum of a photon of energy 1 MeV in kg m/s, will be :

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The radius of germanium (Ge) nuclide is measured to be twice the radius of ⁹₄Be. The number of nucleons in Ge are :

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The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is :

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The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fvₑ, where vₑ is its escape velocity from the surface of the earth. The value of f is :

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Two sound waves with wavelengths 5.0 m and 5.5 m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second :

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Kirchhoff's first and second laws for electrical circuits are consequences of :

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A transverse wave propagating along x-axis is represented by : y(x, t) = 8.0 sin (0.5πx − 4πt − π/4) where x is in metres and t is in seconds. The speed of the wave is :

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The time of reverberation of a room A is one second. What will be the time (in seconds) of reverberation of a room, having all the dimensions double of those of room A ?

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Which one of the following statements is true ?

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Above Curie temperature :

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A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact to form a combination of lenses. The power in diopters of the combination is :

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An electric dipole of moment p⃗ is lying along a uniform electric field E⃗. The work done in rotating the dipole by 90° is :

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A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates :

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A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 s for every circular lap. The average velocity and average speed for each circular lap respectively is :

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A tube of length L is filled completely with an incompressible liquid of mass M and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity ω. The force exerted by the liquid at the other end is :

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A uniform rod of length l and mass m is free to rotate in a vertical plane about A. The rod initially in horizontal position is released. The initial angular acceleration of the rod is : (Moment of inertia of rod about A is ml²/3)

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The vectors A⃗ and B⃗ are such that |A⃗ + B⃗| = |A⃗ − B⃗|. The angle between the two vectors is :

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Paper Info

Exam: AIPMT Prelims
Year: 2006
Questions: 185
Duration: 185 mins

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