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^Anyone ?
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well it does DEPEND on distance travelled by the light ray cos energy is lost due to scattering and absorption in the glass......its glass inside ...optic fibre is not hollowNo, The reason it will lose energy does not depend upon travelling more distance... The reason is because of angle... Light ray, when it exceeds a certain degree of Angle from normal, is reflected.. The reflection is called Total Internal Reflection... if TIR doesnot occur, the light will be refracted and energy will be lost..
AoA,
Because the input to the inverting input of the amplifier is the p.d across P so we have to take its resistance for comparison (coloured red below)
So using the potential divider method:
Inverting input = (Resistance of P / total resistance of thermistor and P) * 2V
Inverting input = (2000 /2000 + 2100) * 2
Inverting input = 0.97 V
This has to be compared with the constant 1V input to the non-inverting input!
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umm so basically we take resistance of P(red one) to compare it with the other 2 resistors? had there been a thermistor in place of one of the two resistors we could have taken the pd across thermistor?
AoA.can u xplain 2 me whats the fuctin of the +5 and -5 that is above and below the opamp
I got your point but it is still incorrect to suggest that light intensity depends upon distance..well it does DEPEND on distance travelled by the light ray cos energy is lost due to scattering and absorption in the glass......its glass inside ...optic fibre is not hollow
The q8c2 shows damping so that amplitude should decrease without any change in period, draw with same period but decreasing amplitude.PLEASEEEEEEEEEEEEEEEEEEEEEE ANYONE ((((((((((((((((((((((((((((((((((((
its the 3rd time im posting!!!!
w07 q1 part b (ii) and s08 q3 part (c)(ii) PLEASE HELP
View attachment 8542ANYONE HELP ME CALCULATE THE WORK DONE ON GAS FOR P TO R?
ya over here the net force is beeen reffered to as the answer of diffrence you found out in previous partsthere is a problem wid dis explanation cos net force shud be the centripetal force.......(cos centripetal force is not a force on its own)it shud be like Fg-N=Fc........so
Fg-Fc=N ......And N=mg where g is the acceleration of free falll........wat do u say
seriously i need help on this tooOne condition for a satellite to be in geostationary orbit is that the orbit of the
satellite must lie in the plane containing the equator. Explain why this is
necessary?
seriously i need help on this too
Please upload the question papers i.e which year and question, so that I may upload pictures for you! It will be much easier for me to find the questionsCan someone please please pleaseee solve these? may you get loads of sawaab
These are some questions where even some of the most brilliant people get confused so i hope this helps everyone out, for the drawing questions, please draw on the diagram and give a brief explanation if possible.
Thank you so much
Q: how to draw a line of lower work function for this graph? i know it's supposed to be on the left and have the same gradient but WHERE do you draw it? how do you figure that out ? :$
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Q: do part ii please:
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Q: please explain in detail how you make these:
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Its asking for a FULLY charged capacitor i.e Vnode which means V maximum .Assalamu alaikum,
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w06_qp_4.pdf
Pls solve Q.6 , part c(2 ) ;
Pls explain why it's V( nought ) used instead of Vr.m.s.?? Thanks
Assalamoalaikum wr wb!!
reposting the ones left
JazakAllah khairen for solving the other ones..many duas 4 all....
PAPER 4 doubts...
Nov 2003
· Q:4 c Can you show, how is the less ripple represented, please.. :s
June 2004
· Q:4 c reason for the answer...· Q:6 last part..· Q:8 iii who said we didn’t use them? :s
June 2006
· Q:2 b (ii) how to do?? :s· Q:6 c what do I write for this?
· Q:7 Can you answer the complete question, I couldn’t do this one... Nov 2006
· Q:3 c what to write? :s· Q:6 a (ii) How do the diode works then, normally...isn’t that the way we usually connect? :s
June 2007
· Q:3 d (i) Why is the answer zero? Just to confirm, is it because E=F/Q and F = ma so E is proportional to a...and hence a will be max. when E is max? is it?· Q:4 c (ii) How’ll the diagram be? :s· Q:7 b I don’t get why the damping is reduced...i took it as, resistance is increased, more power dissioated, hence more energy losses...so oscillations die off quicker..but it say damping is less..:s confused..· Q:7 c (iii) can you give some examples? :sNov 2007
- Q:1b(i) I don’t understand how to do this..i did see the mark scheme but still I wanna know why to do this..or how to arrive at this..:s
- Q:4 b need explanation + how to draw..?
- Q:4 c (ii)I don’t understand, can someone plz explain me..
- Q:4 d explanation... :s
- Q:5 b (ii) Which area do I determine...
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