Qualification > Sciences
ALL CIE PHYSICS DOUBTS HERE !!!
TJ-56:
--- Quote from: $!$RatJumper$!$ on November 09, 2010, 01:56:11 pm ---I drew a light source with a cardboard with a slit in it to act as the place where the diffraction will occur. Then a screen where the diffracted light will be seen.
In your case I dont think we can use an eye as a suitable detection media. We will need to use some sort of equipment in order for us to interpret/observe the diffracted light.
For the second one i simply drew a sound source with a small obstacle and had a microphone and cathode ray oscilloscope on the other end to see the wave pattern on the CRO.
I think your second one is fine.
You may want to check the mark scheme to see what cambridge are looking for exactly in your answers
--- End quote ---
ok thanx, just wanted to make sure
lana:
may june 03 question 3 b(i) please
thanks =]
$!$RatJumper$!$:
--- Quote from: lana on November 09, 2010, 02:58:03 pm ---may june 03 question 3 b(i) please
thanks =]
--- End quote ---
The circumference of a circle is known to be 2*pie*r OR d*pie
In this case we will use d*pie since they have given us the diameter as 3.
So the actual circumference is 3*pie. But then it says that it is turned by 6.5 degrees. Now to find the amount it moved in terms of its circumference, we use: (6.5/360)*(3*pie) = 0.17 cm
P.S we divided it by 360 because we need to express 6.5 in terms of its angle of deflection.
Hope that helped :)
lana:
thank youu for your help =]
+rep
$!$RatJumper$!$:
could someone please help me with S09 P21 Q5b and S08 P2 Q6b
thankx :)
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