Question 1
What is the wavelength of a sound wave with a frequency of 500Hz? (Speed = 330 m/s)

0.66m
0.78m
1.23m
1.5m

Question 2
A sound wave passes through a solid wall. It has a wavelength of 0.25m and travels at 400m/s. What is it's frequency?

325 Hz
450 Hz
1200 Hz
1600 Hz

Question 3
A sound wave travels through a liquid with a wavelength of 0.8m and a frequency of 500Hz. What speed is the wave travelling at?

330 m/s
400 m/s
500 m/s
625 m/s