A siren having a ring of 200 hole makes 132 rev/min. A jet of air is directed on the set of holes. Calculate the frequency and wavelength in air of the note produced (take v = 350m/s)

A siren having a ring of 200 hole makes 132 rev/min. A jet of air is directed on the set of holes. Calculate the frequency and wavelength in air of the note produced (take v = 350m/s)
A. 0.875m
B. 0.625m
C. 0.335m
D. 0.125m

Correct Option: Answer is A
n = 200, S = 132 rev/min, v = 350m/s²
f = n = 200 x 132 rev / min x 1min / 60s = 440Hz
λ = v / f = 350/400 =0.875m

0 0 votes
Article Rating

Solutions is incorrect? Kindly leave a feedback at the comment section

Subscribe
Notify of
guest

0 Comments
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x
Scroll to Top

Download UTME/JAMB Past Questions in PDF format

Get 30% Off with this promo code UZK5QNHC