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Okhay thank uYoung's double slit experiment shows interference. Therefore, the conditions are same.
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Okhay thank uYoung's double slit experiment shows interference. Therefore, the conditions are same.
Hi everyone, AsSalamoAlaikum Wr Wb...
To get things organized in a better way, I am making this thread. As othewise, some queries remain unanswered!
So post your PHYSICS doubts in this thread. InshaAllah other people here will help me and you all.
NOTE: If any doubts in the pastpapers, please post the link! You can find links here!
Any Physics related notes and links will be added here in this post. Feel free to provide the links to your notes around the forum, or any other websites!
Thanks!
Jazak Allah Khair!
Physics Notes:
Some links & Notes - by destined007
As physics p1 MCQS YEARLY Solved [explaination]
Physics Practical Tips - by arlery
Notes for A2 Direct Sensing (Applications) - shared by sweetiepie
Physics Summarised Notes (Click to download)
AS and A-Level Physics Definitions
A2: Physics Revision notes - by smzimran
Paper:5 Finding uncerainty in log - by XPFMember
Physics Paper 5 tips - by arlery
Physics Compiled Pastpapers: <Credits to CaptainDanger for sharing this..>
Here are the compiled A level topical Physics questions in PDF form...
Paper 1 : http://www.mediafire.com/?tocg6ha6ihkwd
Paper 2 & Paper 4 : http://www.mediafire.com/?g65j51stacmy33c
(Source : http://www.alevelforum.com/viewtopic.php?f=15&t=14)
Wow good explanation.Thanks.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_23.pdf
Question 3 (a) please!
Thanks in advance!
They are saying that point A moves 80mm. Point A is a point on the rope and it is not moving sideways but only moving up and down.http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w13_qp_21.pdf
Someone help me understand question 5 (a)(ii) where they ask you to find the amplitude?
I've solved like tonnes of papers and never saw sth like this -.-
Please help.
Also, if Im not being such a bother, explain 5(b) to me as well?
Thanks
OK, for b) part you need to know the concept of stationary waves. Do you have the physics coursebook?http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w13_qp_21.pdf
Someone help me understand question 5 (a)(ii) where they ask you to find the amplitude?
I've solved like tonnes of papers and never saw sth like this -.-
Please help.
Also, if Im not being such a bother, explain 5(b) to me as well?
Thanks
Hi
This is really easy, you just have to understand that it's a curve and you can't use definite shape areas to calculate the distance travelled.
You use this process called counting squares, which the mark schemes use as well. E.g. just count the number of complete 10×10 squares that are present. And then make a rough estimate of the number of 10 × 10 squares that could be occupied by the others. In this case, the number of complete 10 × 10 squares I assumed was 7 + 2.75. It's just an approximation you have to make by judging the size of the square covered by the curve. The area represented by each 10 × 10 square is (2*2 =) 4 m. Therefore,
distance moved = area under curve = (number of 10 × 10 squares) × (Area under each 10 × 10 square)
= (9.75) × (4)
= 39m.
Hope you get me. Cheers.
What i would do is thishttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w09_qp_21.pdf
Can someone please explain question 7 (a)
What do they mean by angle of deviation ? :$
And ... Is the answer for (b) is a straight line with the direction shown?
Thank u
Thank you!!What i would do is this
B would be a bit straighterView attachment 41909
Y is B not like this ?
exactly my question was this too!Ok so A simple question..
Why would Power be zero when resistance would be O or also infinity?
Why would power be zero in both the cases? :/
Y a st.line ?http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w11_qp_21.pdf
Please explain me 5(d)
The zero resistance and infinite resistance question
Thank you
Then the question i've posted has only series not parallelThere are two formulas for power that involve resistance,
P = I^2*R (for series circuits, since current is constant). If resistance is 0 here, the power output is 0.
P = V^2/R (for parallel circuits, since voltage is constant). If resistance is infinite here, the power output is 0.
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