Two cars are moving on two perpendicular road towards a crossing with uniform speeds of `72km//hr`
Channel: Doubtnut
Date: 2020-01-19

Two cars are moving on two perpendicular road towards a crossing with uniform speeds of `72km//hr` and `3km//hr`. If first car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of second car when line joining the cars make `45^@` angle with the roads, will be