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Okay, we know V = 340 and f = 500
so take out λ = V / f = 0.68 m
We know that one wavelength means 360 ⁰ i.e, 2π
so now use the cross multiplication method
0.68 --- > 2π
0.17 -----> ?
? = 90 i.e, π/2
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Okay, we know V = 340 and f = 500
Let's do the math behind this - suppose the distance traveled with both speeds is denoted by "s".Nov 13 paper 11 question number 8 please
I = kA²
k=I/A² (equation 1)
at other position of meter that is equation 2 :
2I=k(x²)
2I= (I/A²) * x²
( 2I * A² ) / I = x²
Taking √ both the sides, x = √ 2 * A
24)
I α a^2 and I α f^2.
Rather than doing all the math to do this, compare the amplitude and frequency of the waves and use the formula to figure out this stuff:
If Q's amplitude is twice as much, the intensity will be four times as much.
If Q's frequency is half that of P, the intensity will be one-fourth.
Net change = 0, so the intensity remains the same.
5)http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s12_qp_11.pdf
Q5, Q12 and Q18. Please, do help me in these.
I am solving everyones doubt line by line, wait...Hey, can you please explain question 22 to me?
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s12_qp_12.pdf
Find lost volts(V) = E - Ir
10)
3)Whoa, more questions that answers
If anyone could help out!
q3 of
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s13_qp_11.pdf
Please and thank you!
22)
22)
Basically, here they asked us to find volume of the crystal (cube), and then we are asked to find its length i.e is 3rd root of volume :¬
Find V from V = m / ρ and 3rd root (V) you'll get the answer
14)
So the shortest distance is basically the length of one atom? Why?
I still don't get it!
We are asked to find the length b/w any two atoms...Did you use the mass that was given? If so, why? There is more than 1 atom in the cube...
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