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Two cars P and Q are approaching each ot...

Two cars P and Q are approaching each other with velocities of 36 km/h and 72 km/h respectively.
The frequency of a note emitted by car P as heard by the person sitting in car Q is 850 Hz. What will be the frequency of note heard by person sitting in car P ? Velocity of sound = 340 m/s.

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To solve the problem, we will use the Doppler effect formula for sound. Let's break down the solution step by step. ### Step 1: Convert the velocities from km/h to m/s The velocities of cars P and Q are given in km/h. We need to convert them to m/s for our calculations. - Velocity of car P (Vp) = 36 km/h - Velocity of car Q (Vq) = 72 km/h ...
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