A car is approaching a hill at a high speed . At that time, it the horm of the car is blown, that driver hears the echo sharper than the original sound . Explain the reason.

A car is approaching a hill at a high speed . At that time, it the hor

1.	A car is approaching a hill at a high speed . At that time, it the horm of the car is blown, that driver hears the echo sharper than the original sound . Explain the reason.
Answer» Solution :The original sound after being REFLECTED from the HILL approaches the CAR and the driver listens to the eacho . So , in this case, the listener is moving towerds the source of the each . So due to Doppler effect, the echo is of a higher APPARENT frequency . Thus, it APPEARS to be sharper than the original sound to the driver .