Q. A man sitting in a moving train hears the whistle of the engine. The frequency of the whistle is $600\ Hz$
A) The apparent frequency as heard by him is smaller than $600\ Hz$
B) The apparent frequency is larger than $600\ Hz$
C) The frequency as heard by him is $600\ Hz$
D) None of the above
Explanation
(c) Since there is no relative motion between the listener and source, hence actual frequency will be heard by listener
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.