96 Questions
Time Left -

N D A Examination Solved Question Paper February 2009

  • Question 10 :
  • Alum is used as

  • Aan analgesic
  • Ba fertiliser
  • Ca disinfectant
  • Da water purifier
  • Question 15 :
  • Which among the following is an element

  • AAlumina
  • BBrass
  • CGraphite
  • DSilica
  • Explanation:

    Alumina is also known as Aluminium oxide. Silica is the other name of silicon dioxide. Brass is an alloy of copper and zinc. Graphite is an allotrope of carbon with an atomic number 6

  • Question 29 :
  • The wavelength of X-rays is of the order of

  • A1 mm
  • B1 cm
  • C1 micron
  • D1 angstrom
  • Explanation:

    1 angstrom is equal to 1.0 × 10-10 meters. See the diagram given against Q. 33 for wavelengths of different rays in the electromagentic spectrum

  • Question 30 :
  • In vacuum, the speed of light

  • Adepends on its wavelength
  • Bdepends on its frequency
  • Cdepends on its intensity
  • Dneither depends on its wavelength, frequency nor intensity
  • Question 82 :
  • Where did Buddha attain Parinirvana?

  • ABodh Gaya
  • BKushinagara
  • CRajgriha
  • DVaishali
  • Explanation:

    The places associated with Buddha are Lumbini (birth place), Sarnath (first sermon) and Kushinagara (Nirvana). To know more about Buddhism