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    Question

    Priya heard thunder 1.8 kilometers away, and the sound

    reached her ears after 20 seconds. What is the speed of the sound?
    A 50 m/s Correct Answer Incorrect Answer
    B 80 m/s Correct Answer Incorrect Answer
    C 100 m/s Correct Answer Incorrect Answer
    D 90 m/s Correct Answer Incorrect Answer

    Solution

    ATQ,

    Speed of sound

    = (1.8 × 1000) / 20

    = 1800 / 20

    = 90 m/s

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