A man is moving towards a wall with a source of sound in his hand. Frequency of source = 50Hz. Speed of man = 8m/s. If the man sends one pulse of sound, what will be the frequency heard by him after sound reflects off the wall? Speed of sound = 330m/s.
(a) 53.86Hz
(b) 52.48Hz
(c) 51.24Hz
(d) 52.45Hz
I got this question in an international level competition.
My doubt is from Waves in division Waves of Physics – Class 11