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Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] (in Hz):-
    Correct answer is '448'. Can you explain this answer?
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    Two cars moving in opposite directions approach each other with speed ...
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    Two cars moving in opposite directions approach each other with speed ...
    Explanation:

    • Let's assume that the two cars are moving towards each other on a straight road.

    • The speed of the first car is 22 m/s and the speed of the second car is 16.5 m/s.

    • The driver of the first car blows a horn with a frequency of 400 Hz.

    • The frequency heard by the driver of the second car can be calculated using the formula:


      • Observed frequency = Actual frequency * (Velocity of sound ± Velocity of observer) / (Velocity of sound)

      • Here, the velocity of sound is 340 m/s.

      • The first car is the observer and is moving towards the second car with a velocity of 22 m/s.

      • The second car is the observer and is moving towards the first car with a velocity of 16.5 m/s.

      • Since the two cars are moving towards each other, the relative velocity between them is the sum of their velocities.

      • Relative velocity = 22 m/s + 16.5 m/s = 38.5 m/s

      • Substituting the values in the formula, we get:

      • Observed frequency = 400 * (340 + 38.5) / 340 = 448 Hz


    • Therefore, the frequency heard by the driver of the second car is 448 Hz.

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    Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] (in Hz):-Correct answer is '448'. Can you explain this answer?
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    Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] (in Hz):-Correct answer is '448'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] (in Hz):-Correct answer is '448'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] (in Hz):-Correct answer is '448'. Can you explain this answer?.
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