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ALL CIE PHYSICS DOUBTS HERE !!!

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thecandydoll:
May/June 2009 Variant 2 Q2C.
How is the other V=  4.2?
and for  deltap/deltat (how do they find T)
there is one more question similar in 2002/oct/nov how to find the time? when finding force acting on speher?

TJ-56:

--- Quote from: thecandydoll on November 11, 2010, 11:23:13 am ---May/June 2009 Variant 2 Q2C.
How is the other V=  4.2?
and for  deltap/deltat (how do they find T)
there is one more question similar in 2002/oct/nov how to find the time? when finding force acting on speher?


--- End quote ---

for the 2002 paper
see attachment for the required time

for the 2009 paper
Reading carefully, theyre asking about only the first 3.5 seconds, so following 3.5 s gives a velocity of 4.2 m/s

Hope that helped

$!$RatJumper$!$:

--- Quote from: TJ-56 on November 11, 2010, 11:03:28 am ---To find the maximum number n of the visible image; we use the eequation you stated,
which is n*lambda=d* sin (theta)
Arranged with n the subject: n = [d* sin (theta)]/ lambda
So to find the max value of n, we need the max value of sin theta, that is when theta is 90 degrees.

--- End quote ---

Thank you :)

TJ-56:

--- Quote from: $!$RatJumper$!$ on November 11, 2010, 12:57:49 pm ---Thank you :)

--- End quote ---

Don't mention it. :)

TJ-56:
Someone please help with the following, kinda silly but i just want to make sure my answers are correct.

W01 Q3 (c) (i) The correct directions please. ( no need for explanation.)
W09 Q7 P21 (a) Can you post how to correctly point out the angle of deviation.
S10 P21 Q5 (b) (ii) 2. (decreasing)

Thanx for any help!

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