Question

Which of the following is an example of the Doppler effect? a A water bug on the surface of a pond is producing small ripples in the water. The bug is not moving. b A police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase. c Scientists measure the speed of light and find that it is constant. d The gravitational pull of two objects on each other

Answer 1

Answer:

b.a police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase.

Answer 2

Answer:

b.a police car with its siren on is driving towards you, and you perceive the pitch of the siren to increase.

Explanation: