QUESTION 2 A note is being played on a string on a guitar. The string is then pu
ID: 1884292 • Letter: Q
Question
QUESTION 2
A note is being played on a string on a guitar. The string is then pushed to the side while still in contact with the same fret. What happens to the frequency of the note then played compared to the original note?
It is at higher frequency than the original note.
It is at lower frequency than the original note.
It can be either higher of lower frequency depending on whether the original note was above or below middle C.
It is the same note since the same fret is being used.
4.00000 points
QUESTION 3
A water bug on the surface of a pond bobs up and down three times per second on ripples with wavelength 10.5 cm. A fish resting at the surface of the pond is 8.50 m from the water bug. How long does it take a ripple passing the water bug to reach the fish?
243 s
81.0 s
0.893 s
27.0 s
a.It is at higher frequency than the original note.
b.It is at lower frequency than the original note.
c.It can be either higher of lower frequency depending on whether the original note was above or below middle C.
d.It is the same note since the same fret is being used.
Explanation / Answer
2)
Tension in string increases , frequency increases So frequency of the note slightly more than orignal note
3)
period T = 0.33 s, = 10.5 cm, wave speed v = /T = 31.5cm/s = 0.3150 m/s
the required time = 8.50 m/0.315 m/s = 27 s