beats can be heard when two tuning forks.....................?

Question

A) are sounded together

B) Have almost the same frequency and are sounded together

C) have the same frequency and are sounded together

D all the above

E) none of the above

Answer 1

b

Answer 2

B

The beats you hear are due to the sounds waves "overlapping" each other. Each wave has its peaks and troughs, and since the waves are really close in frequency, they perform constructive and destructive interference on each other.

The closer the frequencies are to each other the faster the beats. As the two frequencies approach each other (such as tuning a guitar string), the beats become more rapid until finally you hear only one wave. At this point the frequencies are equal (for all practical purposes) and the peaks of each wave line up, as well as the troughs.

Answer 3

sounded together but the frequency should be different.
beats/sec = frequency1(higher) - frequency2(lower)

the frequecy may be close but if same its not a beat but just the same sound, then the beats heard are very sharp.

Answer 4

the answer is B
beats are caused because one fork vibrates slightly differently than the other. the vibrations of the forks will be in step then out of step, etc., therefore, you get beats.

Answer 5

C: the same freq., and sounded together!