Last minute preparation on MCQS 9701 and 9702. Discussion here.

[The Sarcastic Retard]

And this:
View attachment 57455

I used v=f lambda, then what?

Sorry for late reply, I was solving 2006 chemistry paper. :3 I will solve it now.

 

[The Sarcastic Retard]

And this:
View attachment 57455

I used v=f lambda, then what?

Its easy man.
360 degree = 6.6m
Hence 60 degree = ?
That is 1.1m.
Is it correct?

Or u can do like this.. As lambda/4 is phase difference of 90 degree, lambda/6 is for 60 degree.

 

[The Sarcastic Retard]

Does anyone has physics formula sheet?
Thanks.
Physicist
DarkEclipse
awesomaholic101

 

[The Famous One]

Does anyone has physics formula sheet?
Thanks.
[

 

[The Sarcastic Retard]

Thanks umar.

 

[DarkEclipse]

Its easy man.
360 degree = 6.6m
Hence 60 degree = ?
That is 1.1m.
Is it correct?

Or u can do like this.. As lambda/4 is phase difference of 90 degree, lambda/6 is for 60 degree.

Yeah, that's correct. Thanks!

This:

 

[DarkEclipse]

Its easy man.
360 degree = 6.6m
Hence 60 degree = ?
That is 1.1m.
Is it correct?

Or u can do like this.. As lambda/4 is phase difference of 90 degree, lambda/6 is for 60 degree.

Yeah, that's correct. Thanks!

What about this:
View attachment 57466

 

[DarkEclipse]

And this:

 

[Shujaat Khan]

Yeah, that's correct. Thanks!

What about this:
View attachment 57466

Isn't it just 260 degree? I mean the x-axis already denotes phase angle, you can just take a complete cycle from first graph(360) and subtract (100) from it cause second graph started at 100 and not 0. That should give you your phase difference

 

[DarkEclipse]

Isn't it just 260 degree? I mean the x-axis already denotes phase angle, you can just take a complete cycle from first graph(360) and subtract (100) from it cause second graph started at 100 and not 0. That should give you your phase difference

Thanks!
Could you help with the other one as well? The potential divider one.

 

[The Famous One]

Thanks umar.

Welcome JiGeR

 

[The Sarcastic Retard]

And this:
View attachment 57467

Maximum voltage is when there is maximum resistance.
Maximum voltage when sliding contact will be at 3ohms.
Minimum voltage when sliding contact will be at 0ohm.
Use Vout = Vin * R2 / R1+R2+R3
Maximum voltage = 9*5 / 9 = 5V
Minimum voltage = 9*2 / 9 = 2V

 

[shahzaib9291]

 

[The Sarcastic Retard]

View attachment 57474

n = 15 * 10^-3 * 2 = 0.03mol
These moles were present in 25cm^3 so 0.3mol would be present in 250cm^3.
Mr of K2O = 94
1:1 ratio.
Hence 94 * 0.3 = 28.2g.

 

[shahzaib9291]

plz highlight the chirals ans is C

 

[The Sarcastic Retard]

plz highlight the chirals ans is CView attachment 57475

Here you go.

 

[saturn21]

P : Bond breaking is endothermic, from data, Br - Br Bond breaking energy is +193kj/mol
Q : Bond forming is exothermic, from data, Cl2 bond forming energy is -244kj/mol
R : Its exothermic as CH3Cl is formed, from data, CH3Cl bond forming energy is - [(410*3) + (340)] = -1570kj/mol
S : Breaking hence endothermic, from data, bond breaking energy of CH4 is 410*3 + hydrogen.

Hence from most -ve to most +ve order is : R -> Q -> P -> S

Thank you

 

[saturn21]

Ans is B..how?

 

[DarkEclipse]

View attachment 57477


Ans is B..how?

Methane is the simplest alkane, by default it releases the lowest amount of carbon dioxide.

 

[The Sarcastic Retard]

Methane is the simplest alkane, by default it releases the lowest amount of carbon dioxide.

Methane is the simplest alkane, by default it releases the lowest amount of carbon dioxide.

Hows physucks going on??