Waves Assignment 2
This assignment covers sections 5.2 and 5.3.
1. Draw the ‘during’ and ‘after’ snap shots for the following interference patterns.
a)
b)
c)
2. The following is an interference pattern between two waves. That is, what you see is the
‘during’ phase. Draw a ‘before’ picture. Note that there are several solutions.
3. A wave has a length of 30.0 cm and a velocity of 2.5 cm/s. If it has a velocity of
3.70 cm/s when it enters a new medium, what is the wavelength?
4. A wave is 2.30 m long before transmission. After transmission, it is travelling at 5.26 m/s
with a wavelength of 1.75 m. What is the velocity of the wave before transmission?
5. A wave has a velocity of 4.00 m/s before transmission. How fast will it be going in the
new medium if its new wavelength is tripled?
6. The frequency and wavelength of a transmitted wave is 25 Hz and 2.00 cm, respectively.
If the initial wave had a wavelength of 1.75 cm, what is the initial velocity?
7. A transmitted wave with a length of 2.00 m can travel 75.0 m in 30.0 s. If the wave was
travelling at 3.00 m/s in the initial medium, what was the wavelength?
8. Draw all pulses that would be in the rope when the initial pulse is transmitted to point A.