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Author Topic: Physics Help HERE ONLY !!  (Read 80933 times)

nid404

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Re: Physics Help HERE ONLY !!
« Reply #495 on: June 03, 2009, 03:37:27 pm »
Quote from: Adi...\m/ on June 03, 2009, 03:29:46 pm
no idea
nid
i too was wondering abt that

pretty funny
lol..

hey nid ... chk out the question i have just answered... is it correct??
i think the markschemes wrong
nov 08 paper 3 1st variant Q 6.)b.)
sorry boss marksheme is right.

in this case 30ois the angle of refraction.....refractive index of glass is 1.49 i can't explain it but im sure ur smart enough to understand

it's still sini/sinr......just imagine the ray entering from the other side of the block
« Last Edit: June 03, 2009, 03:40:02 pm by nid404 »
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Offline Ghost Of Highbury

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Re: Physics Help HERE ONLY !!
« Reply #496 on: June 03, 2009, 03:40:40 pm »
Quote from: nid404 on June 03, 2009, 03:37:27 pm
Quote from: Adi...\m/ on June 03, 2009, 03:29:46 pm
no idea
nid
i too was wondering abt that

pretty funny
lol..

hey nid ... chk out the question i have just answered... is it correct??
i think the markschemes wrong
nov 08 paper 3 1st variant Q 6.)b.)
sorry boss marksheme is right.

in this case 30ois the angle of refraction.....refractive index of glass is 1.49 i can't explain it but im sure ur smart enough to understand

okay..
tks nid..
but they are aksing to find the angle of refraction using the angle of refraction
but y in the markscheme they write that n = sin r / sin i??
strange!!

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Offline sweetie

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Re: Physics Help HERE ONLY !!
« Reply #497 on: June 03, 2009, 03:44:33 pm »
1 mor que
in 06 oct q8.a were is switch suppose 2 b?????????
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nid404

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Re: Physics Help HERE ONLY !!
« Reply #498 on: June 03, 2009, 03:46:41 pm »
if u consider the refractive index of air(i mean nothing like that) but just to explain......the index will be the same but the equation reverses as how we have if the speed of the wave is given in two mediums and the index is given.

like speed of light in air=3x108 and in glass=2x108
refractive index of glass=3x108/2x108
but for light coming out it's 2x108/3x108

i hope u get it...i s at explaining this physics
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Offline Eamyzz

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Re: Physics Help HERE ONLY !!
« Reply #499 on: June 03, 2009, 03:48:11 pm »
Quote from: notty_me on June 03, 2009, 03:44:33 pm
1 mor que
in 06 oct q8.a were is switch suppose 2 b?????????


on the right or the left line after lamp X and before lamp Y
dd u gt it ? :)

i will try 2 upload it if possible  :)
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Offline Ghost Of Highbury

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Re: Physics Help HERE ONLY !!
« Reply #500 on: June 03, 2009, 03:50:44 pm »
ohhh...got it got it
tks yaar


@notty me
find the answer attached
(nid404 plz chk it)
tks
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Offline astarmathsandchemistry

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Re: Physics Help HERE ONLY !!
« Reply #501 on: June 03, 2009, 03:51:11 pm »
Guys what should i be doing right now??
Its 5:38 PM here in ksa, and i studied the notes carefully revised the last 5years of papers, and this always happen to me I JUST DONT KNOW WHATS LEFT TO DO!! :SS
I usually start predicting questions, but i cant do that for physics can i??

please advise me on what to do thanks
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nid404

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Re: Physics Help HERE ONLY !!
« Reply #502 on: June 03, 2009, 03:52:16 pm »
yup right adi

@reko CHILLAX
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Offline X Abdulrahman X

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Re: Physics Help HERE ONLY !!
« Reply #503 on: June 03, 2009, 03:53:22 pm »
Quote from: rekomeko on June 03, 2009, 03:51:11 pm
Guys what should i be doing right now??
Its 5:38 PM here in ksa, and i studied the notes carefully revised the last 5years of papers, and this always happen to me I JUST DONT KNOW WHATS LEFT TO DO!! :SS
I usually start predicting questions, but i cant do that for physics can i??

please advise me on what to do thanks

take a rest, then do 2003 physics paper, since many questions from chem were from 2003 i think, then just re read some stuff and try to study and remember the equations needed very well :)
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Offline Ghost Of Highbury

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Re: Physics Help HERE ONLY !!
« Reply #504 on: June 03, 2009, 03:54:24 pm »
reko...just relax man!

don't worry so much
be sure that u have studied well!
u'll do great in ur exam
good luck :)
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Offline astarmathsandchemistry

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Re: Physics Help HERE ONLY !!
« Reply #505 on: June 03, 2009, 03:57:39 pm »
Quote from: nid404 on June 03, 2009, 03:52:16 pm
yup right adi

@reko CHILLAX
hehehehe OK I WILL TRY :P BUT I AM SOO SCARED :(
THanks guys for the motivation :)

i hope i do ADi , thanks man good luck to alll :D
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Offline Eamyzz

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Re: Physics Help HERE ONLY !!
« Reply #506 on: June 03, 2009, 04:01:01 pm »
Quote from: rekomeko on June 03, 2009, 03:57:39 pm
Quote from: nid404 on June 03, 2009, 03:52:16 pm
yup right adi

@reko CHILLAX
hehehehe OK I WILL TRY :P BUT I AM SOO SCARED :(
THanks guys for the motivation :)

i hope i do ADi , thanks man good luck to alll :D


come on realax it will b easy insha'alah u dd ur best 5alas ;D
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Offline Shogun

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Re: Physics Help HERE ONLY !!
« Reply #507 on: June 03, 2009, 04:02:59 pm »
yeah 3ad, even i feel tht i finished, but something tells me i have to stress more in radioavtivity....
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Offline astarmathsandchemistry

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Re: Physics Help HERE ONLY !!
« Reply #508 on: June 03, 2009, 04:03:28 pm »
Quote from: Eamyzz on June 03, 2009, 04:01:01 pm
Quote from: rekomeko on June 03, 2009, 03:57:39 pm
Quote from: nid404 on June 03, 2009, 03:52:16 pm
yup right adi

@reko CHILLAX
hehehehe OK I WILL TRY :P BUT I AM SOO SCARED :(
THanks guys for the motivation :)

i hope i do ADi , thanks man good luck to alll :D


come on realax it will b easy insha'alah u dd ur best 5alas ;D
ok fine :)
i hope so all yesma3 mennek, yeah i studied really good :)

can u pls pm me ur email
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Offline astarmathsandchemistry

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Re: Physics Help HERE ONLY !!
« Reply #509 on: June 03, 2009, 04:04:10 pm »
Quote from: Shogun on June 03, 2009, 04:02:59 pm
yeah 3ad, even i feel tht i finished, but something tells me i have to stress more in radioavtivity....
yah walla

ana 5ayef men el radioactivity qstns :S
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