Question

Two closed end pipes when sounded together produce 5 beat per second. If their length are in the ratio 100 : 101, then fundamental notes produced by them are ______.

Options

• 245, 250

• 250, 255

• 495, 500

• 500, 505

Answer 1

Two closed end pipes when sounded together produce 5 beat per second. If their length are in the ratio 100 : 101, then fundamental notes produced by them are 500, 505.

Explanation:

`"N"/("N"+ 5) = 100/101`

101 N = 100 N + 500

N = 500 Hz

N + 5 = 505 Hz.