AIIMS MBBS 2019 Question Paper with Answer Key PDF (May 25 - Afternoon Session)

AIIMS MBBS Questions

• 1.

  The primary winding of a transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an A.C. supply 20 V, 50 Hz. The secondary will have an output of

  • 2 V, 50 Hz
  • 2 V, 5 Hz
  • 200 V, 50 Hz
  • 200 V, 500 Hz.
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• 2.

  A long solenoid has 500 turns. When a current of 2 ampere is passed through it, the resulting magnetic flux linked with each turn of the solenoid is $4 \times 10^{-3}$ Wb. The self-inductance of the solenoid is

  • 1.0 henry
  • 4.0 henry
  • 2.5 henry
  • 2.0 henry
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• 3.

  If N is the number of turns in a coil, the value of self inductance varies as

  • $N^0$
  • N
  • $N^2$
  • $N^{-2}$
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• 4.

  Elemental silicon to be used as a semiconductor is purified by

  • heating under vacuum
  • floatation
  • zone refining
  • electrolysis
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• 5.

  A certain compound X when treated with copper sulphate solution yields a brown precipitate. On adding hypo solution, the precipitate turns white. The compoundXis

  • $K_2CO_3$
  • KI
  • KBr
  • $K_3PO_4$
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• 6.

  In a u-tube as shown in figure, water and oil are in the left side and right side of the tube respectively. The heights from the bottom for water and oil columns are 15 cm and 20 cm respectively. The density of the oil is :- [take $\rho_{water}$ = 1000 kg/m$^3$]

  • 1200 kg/m$^3$
  • 750 kg/m$^3$
  • 1000 kg/m$^3$
  • 1333 kg/m$^3$
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