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Pradeep Sikarwar • 9.01K Points
Tutor III Physics 

Q. Inside an aeroplane, flying at a high altitude,

  • (A) the pressure is the same as that outside.
  • (B) normal atmospheric pressure is maintained by the use of air pumps.
  • (C) the pressure inside is less than the pressure outside.
  • (D) normal humidity and partial vacuum are maintained.
Correct Answer - Option(B)

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