1. Questions:
What is the frequency of a light wave whose wavelength is 700nm (7x10-7 m)
At the edge of a pond Daisy counts four waves in 10s. If the distance between the wavefronts is 80cm what is the wavespeed?
If a recorder plays an A note of 440Hz, and the speed of sound is 340ms-1 what is the wavelength of the note?
What is the path difference between these two waves?

2. Questions:
What is the frequency of a light wave whose wavelength is 700nm (7x10-7 m)
4.3 x 1014 Hz
At the edge of a pond Daisy counts four waves in 10s. If the distance between the wavefronts is 80cm what is the wavespeed?
0.32 ms-1
If a recorder plays an A note of 440Hz, and the speed of sound is 340ms-1 what is the wavelength of the note?
0.77m
What is the path difference between these two waves?
The blue wave is 0.75l ahead of the black wave