Question

5. Two cars are moving on two perpendicular roads
towards a crossing with uniform speeds of 72 km h-
and 36 km hl. If second car blows horn of frequency
280 Hz, then the frequency of horn heard by the driver
of first car when line joining the cars makes angle of 45°
with the roads, will be
(A) 321 Hz (B) 298 Hz (C) 289 Hz (D) 280 Hz
A hand nlaying music at a frequency Vis moving​

Answer 1

Answer:

yes it's the truth for every