DUET 2020 M.Com. Question Paper with Answer Key PDF (June 9 - Shift 3)

DUET Questions

• 1.

  What is the shape and magnetic nature of permanganate ion ?

  • Pyramidal diamagnetic
  • Tetrahedral, diamagnetic
  • Tetrahedral, paramagnetic
  • Planar, paramagnetic
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• 2.

  Which of the following graphs shows the variation of acceleration due to gravity $g$ with depth $h$ from the surface of the earth?

  • 

  • 

  • 

  • 

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• 3.

  A hammer of mass $200\, kg$ strikes a steel block of mass $200\, g$ with a velocity $8\, ms^{-1}$. If $23\%$ of the energy is utilized to heat the steel block, the rise in temperature of the block is (specific heat capacity of steel = $460 \; J \; kg^{-1} \; K^{-1}$)

  • 8 K
  • 16 K
  • 12 K
  • 24 K
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• 4.

  The basic unit of study in Ecology is

  • population
  • organism
  • community
  • species
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• 5.

  Phagocytosis and pinocytosis are collectively termed as

  • endocytosis
  • suspension feeding
  • omnivores
  • mucous trap
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• 6.

  How many $ 1\,\mu F $ capacitors must be connected in parallel to store a charge of $1\, C$ with a potential of $110\, V$ across the capacitors?

  • 990
  • 900
  • 9090
  • 909
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