A person is driving his car on some road and suddenly a policecar stops him for speeding, the police-detected radar gun emits awave whose frequency is 8.0 × 109 ??.
1. How do you think the mechanism by which you know how fast amoving car can go works?
2. Does it depend on the speed of the police car? Does it dependon the speed of the person's car?
3. Does it depend on the two speeds?
4. What role does frequency play?
5. What function does the wave velocity fulfill?
