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IAL physics unit 2 JAN 2020

How was the paper?

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It wasn’t much difficult but not too easy.
Original post by Aysha34
It wasn’t much difficult but not too easy.

Was the angle of refraction 17 degrees?
Reply 3
Original post by Aysha34
It wasn’t much difficult but not too easy.

Same. What did you get for angle of refraction? I got 17°.
Reply 4
Original post by Faazusman
Same. What did you get for angle of refraction? I got 17°


Original post by Yousefsuhail69
Was the angle of refraction 17 degrees?

Same
Original post by Faazusman
Same

Let’s go champ
Same
I got 17

Original post by Faazusman
Same. What did you get for angle of refraction? I got 17°.
Reply 8
I divided the velocities to get the refractive index. Can u do that?
What did you get for the internal resistance and power question?Did you get it 70% ?
Original post by Aysha34
What did you get for the internal resistance and power question?Did you get it 70% ?

Nope 80 something so he was wrong
How did you guys prove the depth was greater than 170m
Reply 12
Original post by Aysha34
Same

guys i also got 17 degrees but there was one thing u people were forgetting, the wavelength was halve of it, and the speed you got was wrong so it was kinda in the range of 33-25 degrees
I got 93%
Original post by Yousefsuhail69
Nope 80 something so he was wrong
i used doppler effect in the Sea wave question. My depth was somewhere around 217m or something. not sure if its right.
did you guys use shallow water equation or deep water equation for that question?
Reply 15
Original post by Alex Who?
i used doppler effect in the Sea wave question. My depth was somewhere around 217m or something. not sure if its right.
did you guys use shallow water equation or deep water equation for that question?

i got 240 something but it was greater than 170m
for the first page, when frequency decreases in the standing wave. I said that wavelength increases, but speed remains same because "T" and "u" remain constant.
Did you guys write this as well?
Original post by zzayn
i got 240 something but it was greater than 170m

what equation did you use ? :0
Reply 18
Original post by Alex Who?
for the first page, when frequency decreases in the standing wave. I said that wavelength increases, but speed remains same because "T" and "u" remain constant.
Did you guys write this as well?

ya same, for the 170 one, i used equation for deep water
Original post by Faazusman
Same. What did you get for angle of refraction? I got 17°.


yes me too

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