Physics: Post your doubts here!

[hela]

yeah i had confusion b/w C n D

see, only B n C r showing full diffraction, but the problem with B is that it is too scattered, that means it diffracted with a larger angle, meaning lrger distance n therefore less intensity
so only C could be the answer

But why not D ... ?

 

[hela]

But why not D ... ?

thanks i underestand

 

[hela]

where can I find old past papers MCQ PAPER 1

 

[fathomspace]

Why is Half wave rectification better?

 

[xtremeforums]

Why is Half wave rectification better?

Half wave rectification is not better... A full wave rectification is better...

 

[hela]

how to get old past papers for Physics AS and A LEVEL

 

[Oceanic]

how to get old past papers for Physics AS and A LEVEL

Here - http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/

 

[Oceanic]

https://www.xtremepapers.com/community/threads/how-was-physics-paper-4.26840/

 

[hela]

Here - http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/

thanks but i mean older than 2000 from 1992 till 2000

 

[Oceanic]

thanks but i mean older than 2000 from 1992 till 2000

Oh okay here - http://www.freeexampapers.com/#A Level/Physics/CIE

 

[Oceanic]

But

thanks but i mean older than 2000 from 1992 till 2000

why do you want them anyways

 

[hela]

But
why do you want them anyways

I WANT TO WORK MORE PAST PAPERS
I REPEATED THE OTHERS MANY TIME
THAKS

 

[hela]

CAN ANYONE SOLVE

 

[hela]

SOLVE PLEASE

 

[hela]

can anyone solve
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_12.pdf Q 10 AND Q33
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf Q33
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_11.pdf Q29
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_13.pdf Q11
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w11_qp_11.pdf Q14

THANKS FOR YOUR HELP

 

[NokiaN95638]

Can anyone help me with these.
http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_w08_qp_5.pdf
2.d and 2.e.
Can anyone tell me how to do this. My gradient is 7.1x10^-7 (+-)5x10^-8.
Is there any general rule for solving these type of question??

 

[NokiaN95638]

CAN ANYONE SOLVE
View attachment 27293

The Answer Is C. As the proton is positively charged and moves to B, the upper plate is negative charged.
Helium nucleus is also +ve charged but since it is heavier than proton it will deflect less hence C is the answer.

 

[hela]

Oh okay here - http://www.freeexampapers.com/#A Level/Physics/CIE

they start at 2001 I want older papers chem bio physics math
thanks

 

[hela]

an anyone solve
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_12.pdf Q 10 AND Q33
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf Q33
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_11.pdf Q29
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_13.pdf Q11
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w11_qp_11.pdf Q14

THANKS FOR YOUR HELP

 

[syed1995]

an anyone solve
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w12_qp_12.pdf Q 10 AND Q33

10 for D and 33 for C?