2. It may be easier to visualize it this way Your feet are the
sources of the wave When a crest and a trough meet the water is
level
3. This animation below gives the Idea behind path difference
The waves from the two different sources have a different distance
they must travel to get to point A.
4. Question A duet is performing at a talent show. They will be
evenly spread out on the stage 18 meters apart. The judge
originally is 6 meters away from them out in the audience right in
between the performers. During their performance he has to take a
phone call and walks towards the door as he realizes that his
battery died. He is now 3 meters away from his judging desk but
still 6 meters away from the performers; it is found to be a point
of minimum amplitude. What is the wavelength of the waves coming
from the singers (assume their talent is to hold the same frequency
and amplitude for a very long time).
5. Solution Use Pythagorean theorem to find the lengths of C^2
13.42-8.49=4.96 Wavelength = 4.96/2 = 2.48
