Physics 41...How'd it go?

[intelligentfool]

hey can u tell me that noise to signal ratio question? how was it supposed to be done, like v had to find the signal power by putting the ratio and value of noise....the question had 3 marks so i thought it consisted of more steps
.....

 

[DonOmarCorleone]

yes!! me too

are u sure of that answer? did u convert the Km to m?

 

[DonOmarCorleone]

hey can u tell me that noise to signal ratio question? how was it supposed to be done, like v had to find the signal power by putting the ratio and value of noise....the question had 3 marks so i thought it consisted of more steps
.....

huh? was that even there? O.O

 

[larina]

are u sure of that answer? did u convert the Km to m?

yes i did!!

 

[larina]

hey can u tell me that noise to signal ratio question? how was it supposed to be done, like v had to find the signal power by putting the ratio and value of noise....the question had 3 marks so i thought it consisted of more steps
.....

there was no question like that in 41

 

[DonOmarCorleone]

yes i did!!

weird man, i got that answer but after a o.o(5030...)

ah whatever

 

[user]

larina
SkyPilotage
Assalamoalaikum wr wb!

i think i too got 5030 for that...

i forgot what hardness was

 

[larina]

weird man, i got that answer but after a o.o(5030...)

ah whatever

may be some problem with the calculation...
dont worry, u'll just lose a mark

 

[KwameE]

user I also literally blanked out on the hardness question .. no idea why .. overall paper went well

 

[larina]

larina
SkyPilotage
Assalamoalaikum wr wb!

i think i too got 5030 for that...

i forgot what hardness was

great!
hardness has something to do with the energy and wavelength...the higher the energy (lower wavelght) more the penetreation of x rays... i wrote something like that

 

[larina]

u guys what about the last part on the first page for 4 marks???

 

[solidboy123]

I got something like 3.55*10^5.. But all my friends got some other value..

0

 

[earthling]

what was the difference in magnetic field density?? I was confused there !
I did Delta B1 ---> 10 mm
Delta B2 --> 3 mm
Is this correct??

yup...i did that too...except i converted it to meters ,..idk whether its right or wrong tho

 

[earthling]

u guys what about the last part on the first page for 4 marks???

energy = potential x mass....
u substitute for potential, multiply and divide by h....replace g...and u get mgh

i think...(not sure tho)

 

[larina]

energy = potential x mass....
u substitute for potential, multiply and divide by h....replace g...and u get mgh

i think...(not sure tho)

i just wrote energy is potential*mass and then i divided something and i got mh, then i just added g and got it as mgh lol

 

[earthling]

i too forgot aLLLLLL about STUPID ....x-rays ...

 

[DonOmarCorleone]

i just wrote energy is potential*mass and then i divided something and i got mh, then i just added g and got it as mgh lol

i missed up in that question as well :/ oh god

 

[earthling]

guys...what value did u get for acceleration ? in the shm question...

 

[larina]

guys...what value did u get for acceleration ? in the shm question...

i got 2.09 something like that, u?

 

[earthling]

i got 2.09 something like that, u?

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