Hey everyone! It's me, Allison, taking Arlyn's place of scribing for today.We started class off by going over Snell's Law for Water Waves, which can be found on page 12 of our Waves in Two Dimensions booklet. After that, we completed the 3rd page of the Guideline to Drawing Problems booklet. In case you missed it, here are the answers:
a) n = Vd / Vs = 40cm/s / 30cm/s = 1.3
b) λdeep = Vdeep / F = 40cm/s / 10.0 Hz = 4cm
λshallow = Vshallow / F = 30 cm/s / 10 Hz = 3cm
c) There are there possible ways to answer this question.
The first way is:
Vd / Vs = sinθi / sinθr
sinθr = (sinθi)(Vs) / Vd
= (sin30°)(30.0cm/s) / (40.0cm/s)
= (0.5)(30) / 40
sinθ = 0.375
θ = 22°
Another way is:
λd / λs = sinθi / sinθr
sinθr = (sinθi)(λs) / λd
= (sin30°)(3cm) / 4cm
= 0.5(3) / 4
sinθr = 0.375
θr = 22°
And the final way:
n = sinθi / sinθr
sinθr = sin30° / 1.3
θr = 22°
Once we finished that, we were assigned two sheets, both labelled Refraction. I'm guessing they are due tomorrow? If not, then Thursday for sure. We were also given a green sheet which had the index of refraction for different substances as a reference.
Yeah, that was pretty much it. Hmn, the scribe for tomorrows class will be Arlyn Guevarra. I'll see all of you guys in class, haha. Later gater! :) - Allison
1 comment:
Great job, Allison.
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