Question

A fork of frequency 256 Hz resonates with a closed organ pipe of length 25.4 cm. If the length of pipe be increased by 2 mm, the number of beats/sec. will be(a) 4(b) 1(c) 2(d) 3

Answer 1

$<b>$

Option D is Correct

Answer 2

If the length of pipe be increased by 2 mm, the number of beats/sec. will be 3