how was physics paper 12? (no discussions till 24 hours)

[Rehman Mallik]

sure

 

[moinul]

so brothers let us discuss..

 

[Moi]

Q2 ? Abt the force component... w=tsin¤ or w=tcos¤ ?
Q8 ? The space craft question? I chose C) 0.8 mg ...?
Q) the question abt water moving through turbine under surface? I guessed it C) 1.7 Mega smth
Q) the graph about variation of voltage when potemtiometer moves from x to y? Its constsnt..straght horizontal line right?
Q) the one where we have 2 and 4 resistance resistors and we need to choose the graph for the voltage across from x to y...it was A?
Q39) how to increasr angle of deflection of alpha particles?? C ? Use double foil?
Q38) the total emf? I guessed bit 4V B... I think its 6V?
Q) the one about whats the angle for diffraction ? Sin^-1 x (wavelength/D) right?
Gimme more questions ?

 

[moinul]

what is the answer for the wave question where a picture of a standing wave was given and asked is it a longitudinal or transverse?

 

[Rehman Mallik]

for 2) i gave w=tsin¤

 

[Abdullah Shirajee]

Q2 ? Abt the force component... w=tsin¤ or w=tcos¤ ?
Q8 ? The space craft question? I chose C) 0.8 mg ...?
Q) the question abt water moving through turbine under surface? I guessed it C) 1.7 Mega smth
Q) the graph about variation of voltage when potemtiometer moves from x to y? Its constsnt..straght horizontal line right?
Q) the one where we have 2 and 4 resistance resistors and we need to choose the graph for the voltage across from x to y...it was A?
Q39) how to increasr angle of deflection of alpha particles?? C ? Use double foil?
Q38) the total emf? I guessed bit 4V B... I think its 6V?
Q) the one about whats the angle for diffraction ? Sin^-1 x (wavelength/D) right?
Gimme more questions ?

space craft question shub me MG itself
90MJ

Its 2xSin^-1 x (wavelength/D)


other all correct

 

[Moi]

space craft question shub me MG itself
90MJ

Its 2xSin^-1 x (wavelength/D)


other all correct

Why 2 sin ??
And whats the answer for my first question plz?

 

[Rehman Mallik]

how many questions did u get common..??
I got only 3-5.!!

same here man! i got 4-5

 

[Rehman Mallik]

wat was the correct answer to the question of the graph of potentiometer..??

mine came straight horizontal line as well

 

[Rehman Mallik]

what was the average speed?

 

[Hafiz Ahmed pak]

Hsris shart lagatey hoo ???
I have taken the snapshots of all the questions !!!!

sirf 2 question repeat huwa :/

 

[Abdullah Shirajee]

Why 2 sin ??
And whats the answer for my first question plz?

sin will give u the angle between the central fringe to 1st order only, so u have to double that

it was tsin

 

[Irahman]

Rehman Bhai,could u please inbox me the answer to the first ten questions,so that i can cross-check...!1

genius_647 bhai can you forward his messages to me

 

[enchanted era]

Yes you are right 5-8 questions were repeated. I found the waves and electricity part easier than the mechanics part. Let's wait and see how the result goes best of luck guyses.

that part was easier? :O...anyway, what did you find hard in the other part?

 

[Irahman]

my doubts:
1) Did you get 6V for finding the EMF?
2) alpha particles colling at a rate of something what was the work done?

 

[enchanted era]

yeah wat was the correct answer to the graph of the potentiometer question..??

it was the straight horizontal graph, this was a common question

 

[Irahman]

I have got 500m/s for avg. speed.........s t right??

 

[Irahman]

Q2 ? Abt the force component... w=tsin¤ or w=tcos¤ ?
Q8 ? The space craft question? I chose C) 0.8 mg ...?
Q) the question abt water moving through turbine under surface? I guessed it C) 1.7 Mega smth
Q) the graph about variation of voltage when potemtiometer moves from x to y? Its constsnt..straght horizontal line right?
Q) the one where we have 2 and 4 resistance resistors and we need to choose the graph for the voltage across from x to y...it was A?
Q39) how to increasr angle of deflection of alpha particles?? C ? Use double foil?
Q38) the total emf? I guessed bit 4V B... I think its 6V?
Q) the one about whats the angle for diffraction ? Sin^-1 x (wavelength/D) right?
Gimme more questions ?

I have got 90MJ

 

[Irahman]

guys need some questions??

 

[Irahman]

a ball was thrown upwards and then it went leftwards, what was the direction?