A source travelling to the right at a speed of 10 m/s emits a sound wave at a frequency of 100 Hz.The sound wave is reflected off a reflector which is travelling to the left at a speed of 5 m/s.What is the frequency of the reflected sound wave detected by a listener back at the source?
A)105 Hz
B)104 Hz
C)109 Hz
D)96 Hz
E)91 Hz

Question

A source travelling to the right at a speed of 10 m/s emits a sound wave at a frequency of 100 Hz.The sound wave is reflected off a reflector which is travelling to the left at a speed of 5 m/s.What is the frequency of the reflected sound wave detected by a listener back at the source? 
A)105 Hz 
B)104 Hz 
C)109 Hz 
D)96 Hz 
E)91 Hz

Quizplus · Accepted Answer

The Answer of A source travelling to the right at a speed of 10 m/s emits a sound wave at a frequency of 100 Hz.The sound wave is reflected off a reflector which is travelling to the left at a speed of 5 m/s.What is the frequency of the reflected sound wave detected by a listener back at the source? 
A)105 Hz 
B)104 Hz 
C)109 Hz 
D)96 Hz 
E)91 Hz

A Source Travelling to the Right at a Speed of 10