question_answer

Tube A has both ends open while tube B has one end closed, otherwise they are identical. The ratio of fundamental frequency of tubes A and B is                                                                           [AIEEE 2002]

A) \[1:2\]   

B)                               \[1:4\]

C)  \[2:1\]       

D)  \[4:1\]

Correct Answer: C

Solution :

(c) Let the tubes A and Shave equal length called as. Since, tube A is opened at both the ends therefore its fundamental frequency

... (i)

Since, tube B is closed at one end, therefore its fundamental frequency

. (ii)

From Eqs. (i) and (ii), we get