Physics: Post your doubts here!

[aditiashok]

There are three papers for phy paper 1
namely
11 , 12 , 13

these are called variants scheduled according to diffrent time zones in diffrent countries...

The syllabus code for physics is 9702

and 9702/11 means first variant paper of physics paper 1

9702/12 means second variant paper of physics paper2 ...... etc

Now, did you get it ?

okay! bt hw is it chosen between them....i mean on wat basis do students select from d 3 variant papers....
for ur info, mine is zone 4.......

 

[smzimran]

okay! bt hw is it chosen between them....i mean on wat basis do students select from d 3 variant papers....
for ur info, mine is zone 4.......

Their region!

Dunno abt regions and their links to choosing papers, maybe the cie website:
www.cie.org.uk
may help you,

Iam in Karachi, Pakistan and here we give paper 12

 

[aditiashok]

i found such informations nowhere...... however, from where u came to dat u sud write paper 12....i mean school teachers or sm1 else ??
as i'm from india , i think i 2 'll 've 2 write d same paper.....
so do u practice all d 3 papers????????

 

[smzimran]

i found such informations nowhere...... however, from where u came to dat u sud write paper 12....i mean school teachers or sm1 else ??
as i'm from india , i think i 2 'll 've 2 write d same paper.....
so do u practice all d 3 papers????????

My school registered me for paper 12, anyways thats not a thing to worry about all paper 11,12,13 are the same

Yes, ofcourse , practise is done from all three variants of many years

 

[aditiashok]

My school registered me for paper 12, anyways thats not a thing to worry about all paper 11,12,13 are the same

Yes, ofcourse , practise is done from all three variants of many years

okay, 1st of all i'm a private candidate....so nw tell me,cos i got to fill this up in the form,wat wud be my components if i go for p1+m1 in maths , paper 1 in history and staged as level in phy???
plzzzzzzzz do reply!!!!!!!!

 

[smzimran]

okay, 1st of all i'm a private candidate....so nw tell me,cos i got to fill this up in the form,wat wud be my components if i go for p1+m1 in maths , paper 1 in history and staged as level in phy???
I have never given papers privately so not that much experience.
However,
I think its all given in an easy way in the form !

 

[aditiashok]

what abt d components????
ne idea????????

 

[anishh]

HELP plz:i)the densities of water and steam at 100 degree celcius and 1.01*10^5 pa are 1000kgm^-3 and 0.590kgm^-3 respectively.find the change in volume which occurs when 1 kg of water evaporates at 100 deg celcius and atmospheric pressure of 1.01 *10^5 pa
ii)calculate the work done against the atmosphere to produce the change in volume found in part (i)

 

[ICTloverz]

this is a question in the physics book.. and I am not able to solve it...
Q- an electric kettle is rated 2.4 kW. electrical energy costs 8 cents per kW h. the kettle takes 1.0 minute to boil sufficient water for two mugs of coffee. calculate the cost of making this amount of coffee on three separate occasions..
The answer for this question in the book at the back is given.= 0.96 cents
Please help...

 

[aditiashok]

post ur doubt on smzimran 's profile. he's an a level student and a tutor as well.he may help u...or better will surely help you...

 

[darknessinme]

this is a question in the physics book.. and I am not able to solve it...
Q- an electric kettle is rated 2.4 kW. electrical energy costs 8 cents per kW h. the kettle takes 1.0 minute to boil sufficient water for two mugs of coffee. calculate the cost of making this amount of coffee on three separate occasions..
The answer for this question in the book at the back is given.= 0.96 cents
Please help...

A kW h is 3600 x 1000 J= 3,600,000 J. Energy used by kettle to boil water on one occasion is 60s x 2400 W = 144 000 J.
So cost of this is (144 000/ 3 600 000) x 8 cents=0.32 cents. For three occasions it is 0.96 cents.

 

[ICTloverz]

Thnks a lot mate..

 

[ICTloverz]

nai yr...it stress over strain...ask from ur phy teacher about it pls...and thn answer me...

Yes.. it is stress over strain

 

[ICTloverz]

Please help me with this questions also..

 

[princesszahra]

V/t = (pie P r^4)/ 8C l
pie is unitless
V x 8 C l = Pr^4 x t
C=( Pr^4 x t) / V
=( kgs^-2 x m^2 x s ) / m^3
= kg s^-1 m^-1

P is pressure so its force divided by area
p= F/A
=kg m^2 s^-2/m^2
=kg s^-2

 

[Peter Check]

Its a question on gravitation. can anyone look at http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_qp_4.pdf question 1 part c part i......I dont think the answer posted in the mark scheme is correct, can anyone verify that?
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_ms_1 2 3 4 5 6.pdf

 

[Albert Einstein]

Its a question on gravitation. can anyone look at http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_qp_4.pdf question 1 part c part i......I dont think the answer posted in the mark scheme is correct, can anyone verify that?
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s03_ms_1 2 3 4 5 6.pdf

Peter check, the answer is correct..i don't find any fault in it....

 

[Varuna0911]

Hello, could you help me out on how to draw a diagram for the hall probe? It's a paper 5 question

 

[Albert Einstein]

Hello, could you help me out on how to draw a diagram for the hall probe? It's a paper 5 question

Just a rectangular medium placed perpendicular to the mag field...ur r tlking abt nov 11 i fink ????....u won't be assess for the "complex" diagram of a hall probe

 

[Mustehssun Iqbal]

Hello, could you help me out on how to draw a diagram for the hall probe? It's a paper 5 question

Albert Einstien is right ^
it looks like a pen. connect it with a circuit too!
that's a hall probe: http://www.google.com.pk/imgres?q=h...w=212&start=0&ndsp=14&ved=1t:429,r:2,s:0,i:73