8th Class Science Sound Question Bank

done Sound IIT JEE Objective Problems Total Questions - 3

• question_answer1)
  A person fires a gun infront of a building 167 m away. If the speed of sound is 334 m/s. Calculate the time in which he hears an echo.
  A)
   0.2s                       done clear
  B)
   2s done clear
  C)
   1.0s        done clear
  D)
   0.1s done clear
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• question_answer2)
  The distance between the observer (source of sound) and wall is 500 m. The observer hear the first echo after 2 sec then velocity of the sound is
  A)
   250 m/s               done clear
  B)
   500 m/s done clear
  C)
   750 m/s               done clear
  D)
   1000 m/s done clear
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• question_answer3)
  A man stands in between two parallel cliffs and fires a gun. Hears two successive echoes after 2 second and 4.5 seconds. What is the distance between the two cliffs.
  A)
   332 m                   done clear
  B)
   1079 m done clear
  C)
   482 m                   done clear
  D)
   747 m done clear
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