Question

CHOOSE THE CORRECT OPTIONs IN EACH.

1. The speed of sound depend upon the

a. frequency of sound
b. Amplitude
c. loudness
d. state of medium

2. An ambulance with its siren sounding is standing in heavy traffic. A pedestrian notices that although the loudness of the sound prouduced does not change, its pitch varies. Which option in the following is responsible for the change in its pitch?

a. Constant, Varying
b. Constant, constant
c. Varying, Constant
d. Varying, Varying

And explain me how and why?
best answer will be brainlisted :)
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Answer 1

Explanation:

option a

option b

hopefully it will help you

Answer 2

Answer:

1 answer

hope it will help you

And 2nd ques answer is option b