New 55% Off on All Courses - Enroll Now! Click Here

    Question

    What is the minimum distance required for an obstacle to

    produce a distinct echo?
    A 11.2 meters Correct Answer Incorrect Answer
    B 17.2 meters Correct Answer Incorrect Answer
    C 32.2 meters Correct Answer Incorrect Answer
    D 42.2 meters Correct Answer Incorrect Answer

    Solution

    The minimum distance required for an echo to be heard is 17.2 meters at a temperature of 22 degrees Celsius, with the speed of sound in air being approximately 344 m/s.

    Practice Next

    Relevant for Exams: