AMUEEE 2016 Physics Question Paper with Answer Key PDFs (April 24)

AMUEEE Questions

• 1.

  The air pressure at sea level is $ 101325 \,Pa $ . At the centre of a rarefaction of a sound wave in air, the pressure is $ 91000 \,Pa $ . Which is the most likely pressure at the centres of a compression of the same wave?

  • $ 91000\, Pa $
  • $ 101000\, Pa $
  • $ 111650\, Pa $
  • $ 121000\, Pa $
  View Solution

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• 2.

  A rocket is moving at a speed of $ 200 \,m/s $ towards a stationary target. While moving it emits a wave of frequency $ 1000 \,Hz $ . Some of the sound reaching the target gets reflected back to the rocket as an echo. The frequency of the echo as detected by the rocket is (velocity of sound $ = 330 \,m/s $ )

  • $ 1000\, Hz $
  • $ 1580\, Hz $
  • $ 2540\, Hz $
  • $ 4080\, Hz $
  View Solution

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• 3.

  The time-period of a physical pendulum is $ 2\pi\sqrt{I /mgd} $ , where $ I $ is the moment of inertia of the pendulum about the axis of rotation and $ d $ is perpendicular distance between the axis of rotation and the centre of mass of the pendulum A circular ring hangs from a nail on a wall. The mass of the ring is $ 3 \,kg $ and its radius is $ 20\, cm $ . If the ring is slightly displaced, the time of resulting oscillations will be

  • $ 1.0 \, s $
  • $ 1.3 \, s $
  • $ 1.8 \, s $
  • $ 2.1 \, s $
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• 4.

  The ratio of the half-life time $ (t_{1/2}) $ , to the three quarter life-time, $ (t_{3/4}) $ , for a reaction that is second order

  • depends directly on concentration of reactants
  • is independent of concentration of reactant
  • depends inversely on the concentration of reactants
  • depends directly to the square of concentration of reactants
  View Solution

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• 5.

  The rate constant, the activation energy and the Arrhenius parameter of a chemical reaction at $ 25^{\circ}C $ are $ 3.0 \times 10^{-4} \, s^{-1} $ , $ 104.4 \, kJ \, mol^{-1} $ and $ 6.0 \times 10^{14} \, s^{-1} $ , respectively. The value of the rate constant at $ T \rightarrow \infty $ is

  • $ 2.0 \times 10^{18} \, s^{-1} $
  • $ 6.0 \times 10^{14} \, s^{-1} $
  • $ 3.6 \times 10^{30} \, s^{-1} $
  • Infinity
  View Solution

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• 6.

  The standard emf of the cell $ (E^{\circ}_{cell} $ and equilibrium constant $ (K_{eq}) $ of the following reaction of $ 298\, K $ $ Cd^{2+} + 4NH_{3} {\rightleftharpoons} Cd (NH_{3})^{2+}_{4} $

  • $ E^{\circ}_{cell}=1.0V, K_{eq}=126\times10^{7} $
  • $ E^{\circ}_{cell}=0.21 V, K_{eq}=126\times10^{7} $
  • $ E^{\circ}_{cell}=1.0 V, K_{eq}=6.60\times10^{33} $
  • $ E^{\circ}_{cell}=0.21 V, K_{eq}=6.60\times10^{33} $
  View Solution