Question

The number of possible natural oscillation of air column in
a pipe closed at one end of length 85 cm whose frequencies
lie below 1250 Hz are : (velocity of sound = 340 ms⁻¹)
(a) 4 (b) 5 [2014]
(c) 7 (d) 6

Answer 1

Answer:

I think 6 is the answer for this

Answer 2

Answer:

(b) 5 [2014]

Explanation:

here is your answer. ...

hope it will help you.....