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yeh bhi pls 
D q hy yeh
D q hy yeh-
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Biology; Chemistry; Physics: Post your doubts here!
- Thread starter scouserlfc
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Answer's D?
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sorry
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yes it is.. hw
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peaccehere you go!
View attachment 42905
this is the way you can find the region visible by student Y,X & Z (represented by different colours) i have made image of all three as well.
note that every student can see the image of other 2.....
you could also make reflected rays instead of making the visible regions.....
which would be like this..:
View attachment 42906
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I was asking Ahmad. You also want to know about it?yes it is.. hw
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yupp
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Im so tired of mcqs ab aur nai karne ka dil charaha par bht kam years kiyay hain kia kroon
ab aur nai karne ka dil charaha par bht kam years kiyay hain kia kroon 
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frequency of blue ray is always greater than red also it bends greater than red making a greater angle dyes it is.. hw
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I just started.Im so tired of mcqs
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Yeh ham nahi karty.
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i feel like cryingI just started.
ihope it goes well..off to bed now
wil go thru mcqs now tom
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Relax. Good luck. Night.i feel like crying
off to bed now
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You will get wrong angle of incidence thus wrong angle of refraction so diagram will be wrong. I didn't say they won't meet at a single point?
How come?
when the ray passes thru the centre it will go undeviated and hit the screen at a pt.Now any ray drawn frm the same pt of the obj towards the lens will go meet at tht pt..Try it out for ur self u will see tht even after diff rays meet at diff pts of lens they will meet at one pt.
Abt wht u drew..I assume tht u though the after hitting the lens the ray will go parallel to principal axis.This is the case if it were to pass thru f which is not given in the question so this assumption wud be wrong,but it wud be right on the pretext tht any ray frm the top wud after refraction meet at tht pt.
This is related to electronics which none of us study, i mean we skip it. We only study CRO, thermistor, LDR, LED and yeah that it. You do bave a choice
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http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_w13_qp_11.pdf
13th, 25th and 30th MCQ anyone?
13th, 25th and 30th MCQ anyone?
Had a long discussion on 13
25. Use the right hand grip rule for current. It is clockwise, and since P is closer, the field is greater there
30. Voltage in parallel is the same, V1=V2, but the current divides, I1=/I2
Q13, oone bongi try:
B: as the surrounding temperature keeps changing coz of energy lost by the house, the temperature will not remain constant. coz if surrounding temperature rises, the temp. of house will also rise to keep the temperature of house *warmer* than surroundings. and the Q says, temperature of house is to be constant. so B is not the explanation.
C: its definitely not true.
D: this one is also not true.
only choice left, is A
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So what did you guys conclude about 13th?
Actually I've forgotten how to use it. :/ Like if I place the thumb in the direction of the current which is into the paper, how do I get the field from teh curled up fingers?
When resistances of resistors are diffrnet, the p.d will vary too, I mean one with greater resistance voltage and vice versa. Why is this not applied over here?