NEET Physics Waves Questions Solved


A person carrying a whistle emitting continuously a note of 272 Hz is running towards a reflecting surface with a speed of 18 km/hour. The speed of sound in air is 345 ms–1. The number of beats heard by him is 

(1) 4

(2) 6

(3) 8

(4) 3

Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level: