1) In case of standing waves producing in
organ pipe, fundamental frequency in case of open pipe is _____ that in case of
closed end pipe
a)
Same as
b)
Double than
c)
Half of
d)
All of above have equal chances
2) Which type of organ pipe is richer in
harmonics
a)
Open at both ends
b)
Closed at one end
c)
Closed at both ends
d)
None of these
3) The wavelength of sound produced by an
open end organ pipe in nth mode is
a)
2ℓ/n
b)
2nℓ
c)
2n+ℓ
d)
None of these
1.b
2.a
3.a
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