JEE Main & Advanced
Physics
Atomic Physics
JEE PYQ-Atomic Physics
question_answer
Two cars A and B are moving away from each other in opposite directions. Both the cars are moving with a speed of with respect to the ground. If an observer in car A detects a frequency 2000 Hz of the sound coming from car B, what is the natural frequency of the sound source in car B? (speed of sound in air ) :- [JEE Main 9-4-2019 Afternoon]