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ur welcomeo
oh my god lol wow, you're a genuis ! thanks
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ur welcomeo
oh my god lol wow, you're a genuis ! thanks
Why is it λ / 2 and not λ ... since the distance between the two nodes are λ
because area of a circle is πr^2 and r=2d when u combine the both it will be πd^2/4 ..............http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s11_qp_21.pdf
Question 1, b(i) in the formula why did the apply π and 4 ?!
Why not only 7.5*(o.38*10^-3)/1/75 ?
Markscheme : http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s11_ms_21.pdf
yesThat was A2 right?
yup plzz..n s11 41 too
the maxima will be produce where both waves are in phase or the meeting point of two wave fronts and the minima are formed where a single wave is passing through the trough of other.please help me with question number 7 b(ii) and c. Link to the question is http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s11_qp_21.pdf
i know the theory a figure would be helpfulthe maxima will be produce where both waves are in phase or the meeting point of two wave fronts and the minima are formed where a single wave is passing through the trough of other.
so in every question of this type, are we supposed to use πd^2/4 for area?!because area of a circle is πr^2 and r=2d when u combine the both it will be πd^2/4 ..............
hmm dont panick looks like u finding half the paper diff :Ohttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w09_qp_22.pdf
Q2b(ii) 2.
Q4c(ii)
Q5a(ii), b, c(ii)
please help *yikes* -_-
linkmay/june 12 qp 21 question 3 (b).can some1 explain
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