Biology; Chemistry; Physics: Post your doubts here!

[khizer shahab]

D??

ABSOLUTELY .
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WRAUNG

 

[malay]

The answer should be A. what year question is it?

yeah right it should be A

 

[malay]

ABSOLUTELY .
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WRAUNG

i got dat now i didnt take the perpendicular distance earlier

 

[khizer shahab]

The answer should be A. what year question is it?

CORRECT DUDE ,,,,BUT HOW

ANSWER WITH COMPLETE REASONING PLEASE !!!

year W04

 

[syed1995]

damn it man .. meri tayyari zero hai :\

 

[khizer shahab]

damn it man .. meri tayyari zero hai :\

khuda ka khauf karo syed1995 ahr question to correct respond karahey ho ..aur kia chahiye...distinction maarni hai kia

 

[syed1995]

CORRECT DUDE ,,,,BUT HOW

ANSWER WITH COMPLETE REASONING PLEASE !!!

year W04

Weight = 60*10 (mass*gravitational field)
Force Exerted by Weight = 600*70 M=FxD
The Force Required to Pull it up = Force Exerted By Weight
Fx(70+50)=42000
F= 42000/120
F=350

 

[syed1995]

khuda ka khauf karo syed1995 ahr question to correct respond karahey ho ..aur kia chahiye...distinction maarni hai kia

Abay MCQ mein tu tukkay lag jaatay hain .. sala theory nai hoti mjh say (((( ...

 

[khizer shahab]

Abay MCQ mein tu tukkay lag jaatay hain .. sala theory nai hoti mjh say ((((

YEH ABHI THORI DAIR PEHLEY MCQ MEIN TUKKA MAARA HAI ???

khair theory to ziada aasaan hoti hai !!! asal marks to mcqs se gain karney hotey hain !!!

 

[syed1995]

YEH ABHI THORI DAIR PEHLEY MCQ MEIN TUKKA MAARA HAI ???

khair theory to ziada aasaan hoti hai !!! asal marks to mcqs se gain karney hotey hain !!!

hahahaha mera ulta hai yaar!!
I got 35 in my Mock Theory Paper ( .. while 36 in MCQs and 27 in ATP

 

[khizer shahab]

hahahaha mera ulta hai yaar!!
I got 35 in my Mock Theory Paper ( .. while 36 in MCQs and 27 in ATP

THOERY MEIN TO BAS point to point bat karni chaye ,, i guess tum kuch faltu likh deytey hogay !! okay thnx for assistance going to bed !!

 

[syed1995]

"From 2012, candidates will no longer be required to do calculations using the mass energy equation E = mc2"

w00t

 

[malay]

can anyone give some necessary info about thermistor?

 

[ashiqbal]

what will be volume of a gas if pressure on it is released from 22mm-Hg to 12 mm-Hg ????

what was original volume??

 

[ashiqbal]

U did this mcq paper w09 paper 1 can u help me with mcq no 22 !

this was a tricky question. I got the answer wrong at first too!

see we all know different properties of images formed by converging lens! this question asks about a DIVERGING lens. The properties of image formed by DIVERGING LENS are :

1. Virtual(same side of lens)
2. Upright
3. Diminished
4. Closer to lens than object

Use the first and fourth property to find the answer!

 

[ashiqbal]

can anyone give some necessary info about thermistor?

resistance decreases as temperature increases, and vice versa. Thats all u have to know i think!

 

[ashiqbal]

hahahaha mera ulta hai yaar!!
I got 35 in my Mock Theory Paper ( .. while 36 in MCQs and 27 in ATP

what???? i always get around 67-70 in theory! MCQs main marks girtay hain!

 

[ashiqbal]

"From 2012, candidates will no longer be required to do calculations using the mass energy equation E = mc2"

w00t

yes! we are lucky............. kai humaray syllabus ki 47 equations main sai aik kum hogai!
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(by the way, 47 is just an estimate! )

 

[luckywang]

i told him, not showed him

anyway, just posting some difficult MCQs, if someone could please explain:
s09 Q30
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Physics (5054)/5054_s09_qp_1.pdf
w09 Q29
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Physics (5054)/5054_w09_qp_1.pdf
w10 Q29
http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Physics (5054)/5054_w10_qp_11.pdf

and could also post other difficulties i encounter as well if u guys want, as some MCQs might be easy for some but help others, so let me know!

s09 Q30=B? live wire connect to metal casing so the casing is live?
w09Q29=B? check textbook...
w10Q29=A? electron is negative, electrons always flow from negative to positive?

 

[ashiqbal]

explain Q9(v): why are the forces added?
http://www.xtremepapers.com/papers/...nal O Level/Physics (5054)/5054_w11_qp_21.pdf