📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      A Boy plants a bomb at a place in Diwali and starts

      running at 30 m/s. After 54 seconds the bomb was blast. In how much time the sound of blast will be listen by the boy, if the speed of sound is 300 m/s.
      A 6 seconds Correct Answer Incorrect Answer
      B 5.5 seconds Correct Answer Incorrect Answer
      C 8 seconds Correct Answer Incorrect Answer
      D 12 seconds Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Speed of Boy = 30 m/s Speed of sound of Bomb = 640 m/s Distance travelled by a Boy in 54 seconds = (30 × 54) m The time taken by the sound of blast to be listen by him T = D/S = (30 ×54)/(Relative Speed ) = `[(30xx54)/(300-30)]` = `(30xx54)/270` = 6 seconds

      Practice Next
      More Time and distance Questions

      Relevant for Exams:

      ask-question