AIPMT 2011 Prelims

171 Questions • 171 Minutes • 2011

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A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron

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In an ac circuit an alternating voltage e = 200√2 sin 100t volts is connected to a capacitor of capacity 1 µF. The r.m.s. value of the current in the circuit is

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An ac voltage is applied to a resistance R and inductor L in series. If R and the inductive reactance are both equal to 3 Ω, the phase difference between the applied voltage and the current in the circuit is

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When 1 kg of ice at 0°C melts to water at 0°C, the resulting change in its entropy, taking latent heat of ice to be 80 cal/g, is

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Two waves are represented by the equations y₁ = a sin(ωt + kx + 0.57) m and y₂ = a cos(ωt + kx) m, where x is in metre and t in s. The phase difference between them is

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Out of the following functions representing motion of a particle which represents SHM?

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Sound waves travel at 350 m/s through warm air and at 3500 m/s through brass. The wavelength of a 700 Hz acoustic wave as it enters brass from warm air

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The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is

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The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number Z of hydrogen like ion is

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Which of the following is not due to total internal reflection?

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In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is

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Electrons used in an electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased to 100 kV then the de-Broglie wavelength associated with the electrons would

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Light of two different frequencies whose photons have energies 1 eV and 2.5 eV respectively illuminate a metallic surface whose work function is 0.5 eV successively. Ratio of maximum speeds of emitted electrons will be

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In the Davisson and Germer experiment, the velocity of electrons emitted from the electron gun can be increased by

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The half life of a radioactive isotope X is 50 years. It decays to another element Y which is stable. The two elements X and Y were found to be in the ratio of 1 : 15 in a sample of a given rock. The age of the rock was estimated to be

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Photoelectric emission occurs only when the incident light has more than a certain minimum

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Fusion reaction takes place at high temperature because

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A nucleus ᵐₙX emits one α-particle and two β⁻-particles. The resulting nucleus is

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A transistor is operated in common emitter configuration at VC = 2 V such that a change in the base current from 100 µA to 300 µA produces a change in the collector current from 10 mA to 20 mA. The current gain is

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If a small amount of antimony is added to germanium crystal

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Paper Info

Exam: AIPMT Prelims
Year: 2011
Questions: 171
Duration: 171 mins

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