Question

A tuning fork makes 256 vibrations per second in air. When the velocity of sound is 330 m/s, then wavelength of the tone emitted is

• A. 0.56 m
• B. 0.89 m
• C. 1.11 m
• D. 1.29 m

Answer 1

Answer: (D)

1.29 m

Answer 2

$v = n\lambda$ ⇒ $\lambda = \frac{v}{n} = \frac{330}{256} = 1.29m$