Question

Two tuning forks A, B vibrate with frequencies in the ratio 2 : 7 and their wavelengths in the ratio 3 : 4 respectively. The wave producing greater wavelength is :

• A. Tuning fork A
• B. Tuning fork B
• C. Both (A) and (B)
• D. Cannot be determined

Answer 1

The correct option is B Tuning fork B

Here,

According to question, it is given that ratio of wavelengths of $A$ and $B$ is, $3:7\cong 3/7$

From which we can say that, ${\lambda }_B>{\lambda }_A$ , where ${\lambda }_A$ and ${\lambda }_B$ is wavelength of $A$ and $B$ respectively.

$⟹$ Wavelength of Tuning Fork $B$ is greater than $A$