Biology; Chemistry; Physics: Post your doubts here!

[Mahnoorfatima]

But that person said B is the right answer

I guess that person has probably got a name my friend. I'll have to read these whole pages to get the question I posted,

 

[FLRNAB]

123

That is wrong. The ray is not parallel to principal axis.

 

[Dark Destination]

Han thek hai lekin cathode pe cations jaen gey. So that makes the last option metal.

Hydrogen is a cation. o.o

H+ nahi jaata cathode pe?

 

[Dark Destination]

I guess that person has probably got a name my friend. I'll have to read these whole pages to get the question I posted,

I forgot the name. And yeah, we figured the answer out. It's quite complicated. .-.

 

[radrox]

g

 

[FLRNAB]

Anyone?

Something like this:

 

[Laibaaa]

Han thek hai lekin cathode pe cations jaen gey. So that makes the last option metal.

Cathode per anions nai aate cos cathode is negatively charged? :|

 

[FLRNAB]

It cancels the moment but NOT the weight..See tht,s the confusing part.
But let me illustrate.
Consider a balanced metre rule on a pivot(50 cm mark) now two weight are added on opp sides of pivot such tht they balance overall.Does the pivot exert no force?
No infact it wud exert force to oppose weight of rule and combined weight of two of thoses weights.Remember only moments are equalized and the weight still acts downwards;there,s to be sth tht opposes their weight as well and tht is pivotal exertion(force

O_O
Ohhhhhhhhhhhhhhh.

 

[Dark Destination]

Cathode per anions nai aate cos cathode is negatively charged? :|

Cations are positively charged.

 

[M.Omar]

That is wrong. The ray is not parallel to principal axis.

So?
It, is not like they have to converge at focal point ..they have already told us tht image is formed so two rays from same point will meet at the same point on the screen to produce the image..Passing frm centre shows where the image head wud be and the second line which can be drawn to any part of lens will ultimately meet the pt where the ray frm opt centre hit the screen

 

[M.Omar]

O_O
Ohhhhhhhhhhhhhhh.

So u got it I presume?
Cant make out if u did so otherwise,

 

[Mahnoorfatima]

I forgot the name. And yeah, we figured the answer out. It's quite complicated. .-.

Can you explain it to me. In a summarised form. I can't get out anything of what you people said.

 

[Riding hood]

Hey yar physics k syllabus me har jaga lkha hua hai describe experiments for this describe experiments for that .. Paper 2 me do we really have to describe them?

 

[Muhammad_Hamza]

Something like this:

ok thanks

 

[Mahnoorfatima]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s09_qp_1.pdf
Question 37????

 

[peacce]

Really?Phy mcqs are usually easy......is there a type in which you get stuck?

 

[peacce]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s09_qp_1.pdf
Question 37????

pata chalay tu mjhe b batayayga

 

[Awesome12]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s09_qp_1.pdf
Question 37????

V is directly proportional to R
If we increase the resistance in the parallel circuit, the voltage also increases
Thus reading on V2 will increase

Voltage divides in a series circuit, and thus
Reading on V1 will decrease

 

[DaniyalK]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s09_qp_1.pdf
Question 37????

When the resistance of R increases, the effective resistance of the 2 resistors in parallel also increases. This means that voltage V2 across the parallel resistors increases. Since this is a potential divider, the other voltage, V1 decreases (the total voltage in the circuit is constant.)

 

[fatima sheikh]

describe, with the aid of a block diagram, one type of fission reactor for use in a power station
plz explain this......