Physics: Post your doubts here!

[ThePacifics]

do yall think the grade threshold for A can be atleast 60? because even last years papers had 65 and 55 and this years was much diff than last ones

*concept and tricky level sigh

 

[armeena]

I got 17.3 mm for the amplitude question on SHM... you?

your answer is right. our physics tutor told us we had to use a=-w^2x, and set a to 9.81. We'd get the answer you got.

 

[Shamlah]

in p41, last page, what did you guys get for activity and decay constant ??

 

[Zaki ali asghar]

guys for P42 how many capacitors were we provided with?

 

[Zaki ali asghar]

ALSO, were there total of 12 QS or 11?

 

[Mts.99]

guys for P42 how many capacitors were we provided with?

3

 

[sarmadimran]

ALSO, were there total of 12 QS or 11?

12

 

[anastasia grey113]

ALSO, were there total of 12 QS or 11?

i think 12

guys for P42 how many capacitors were we provided with?

3 of 6 microfarads

 

[Zaki ali asghar]

Q1Escape VELOCITY

Q2 IDEAL GAS

Q3 SPECIFIC HEAT

Q4 SHM

Q5 BANDWITH ETC

Q6 OP AMP

Q7 VELOCITY SELECTOR

Q8 MAGNETIC FLUX AND GRAPH

Q9 PHOTO ELECTRIC EFFECT

Q10 RADIOACTIVITY

Q11 CAPACAITNCE these are not in correct order but which one was 12th?

 

[Zaki ali asghar]

oh got it, it was the ct scan one.

 

[anastasia grey113]

Q1Escape VELOCITY

Q2 IDEAL GAS

Q3 SPECIFIC HEAT

Q4 SHM

Q5 BANDWITH ETC

Q6 OP AMP

Q7 VELOCITY SELECTOR

Q8 MAGNETIC FLUX AND GRAPH

Q9 PHOTO ELECTRIC EFFECT

Q10 RADIOACTIVITY

Q11 CAPACAITNCE these are not in correct order but which one was 12th?

ct scan

 

[ThePacifics]

btw the gain for paper 41 phys was 12 right?

 

[Zaki ali asghar]

guys i hate being paranoid but for 42, the graph for emf. It was a digital shaped graph with both in the same direction but the second voltage was greater right? because gradient was in same direction.

 

[anastasia grey113]

guys i hate being paranoid but for 42, the graph for emf. It was a digital shaped graph with both in the same direction but the second voltage was greater right? because gradient was in same direction.

yh it was 7.2

 

[armeena]

btw the gain for paper 41 phys was 12 right?

-12, it was inverting

 

[ThePacifics]

-12, it was inverting

im glad i made it -12 at the last minute

 

[Pravin Hapugaswatta]

Guys i messed up in finding the gain...i got confused and used the formula for the inverting op-amp so will i get ecf
paper 42

 

[Tauqir_hamed]

guys for P42 how many capacitors were we provided with?

provided with 3 capacitors . each of capacitance 6uF

 

[Tauqir_hamed]

GUYS, ANYONE REMEMBER THE SHM QUESTION. VARIENT 42. DID IT SAY STATE AND EXPLAIN HOW THE TROLLEY IS DAMPED ??? OR DID IT SAY '' STATE '' ONLY.. I WROTE ' LIGHTLY DAMPED ' ONLY.

 

[Minsa Fatima]

guys i hate being paranoid but for 42, the graph for emf. It was a digital shaped graph with both in the same direction but the second voltage was greater right? because gradient was in same direction.

The gradient was in the same direction but one line was passing through positive values of B and other through -ve.
So wont they be in opposite directions? Does sign of B make any difference?