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Same goes for you... Do well.. Be freshNah, done for the night. Thanks for all your help.
Best of luck for tomorrow.
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Same goes for you... Do well.. Be freshNah, done for the night. Thanks for all your help.
Best of luck for tomorrow.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_1.pdf
Q40, Q33, Q26,
Explain plz,
I need a little bit of help in double slit experiment:
Could any one give me all the details like, what will happen if we:-
Increase the distance between the slits,
Increase the length of slits, i mean the hole
Increase the distance between the screen and slit,
Use light with higher frequency,
And vice versa.
Q40 you have to check out the proton number by nucleon numbers ratio the one with the lowest has lowest speed because mass of neutron and charge of prton matters Li will be the anshttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_1.pdf
Q40, Q33, Q26,
Explain plz,
I need a little bit of help in double slit experiment:
Could any one give me all the details like, what will happen if we:-
Increase the distance between the slits,
Increase the length of slits, i mean the hole
Increase the distance between the screen and slit,
Use light with higher frequency,
And vice versa.
just look at the fomula: wavelength= (separation of fringes * separation of slits)/distance from the screen. rearrange the equation to figure out what you would need to do in order to increase the separation of the fringes. It can be seen that D which suggests that red light should be used is the answer. Red light has a higher wavelength than violet. This higher wavelength is directly proportional to the fringe separation. for Q33, in parallel circuits, the voltage is the same so 2/10,000 is 0.0004 which is the current. this can be multiplied with 5000 since the voltage between S and P is asked. it gives the voltage as 1. For the other branch, the voltage which is 2 can be divided by the resistance which is 5000. This gives 0.0004 as the current. it can then be multiplied to the 3000 ohm resistor since its asking for the voltage from S to Q. This gives 1.2 V. 1-1.2 V= -0.2V. for the 40th question, you have to make qV=0.5*m*v^2. the lowest velocity is achieved by having the least mass since the voltage and charge is constant. LI has the lowest charge.http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_1.pdf
Q40, Q33, Q26,
Explain plz,
I need a little bit of help in double slit experiment:
Could any one give me all the details like, what will happen if we:-
Increase the distance between the slits,
Increase the length of slits, i mean the hole
Increase the distance between the screen and slit,
Use light with higher frequency,
And vice versa.
40: Force=Charge*Electric field and also mass*accelerationhttp://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s07_qp_1.pdf
Q40, Q33, Q26,
Explain plz,
I need a little bit of help in double slit experiment:
Could any one give me all the details like, what will happen if we:-
Increase the distance between the slits,
Increase the length of slits, i mean the hole
Increase the distance between the screen and slit,
Use light with higher frequency,
And vice versa.
Speed=Distance/timeAn aeroplane travels at an average speed of 600 km h–1 on an outward flight and at 400 km h–1 on
the return flight over the same distance.
What is the average speed of the whole flight?
A 111 m s–1 B 167 m s–1 C 480 km h–1 D 500 km h–1
The anwser is C, how
Which year is this question in ???An aeroplane travels at an average speed of 600 km h–1 on an outward flight and at 400 km h–1 on
the return flight over the same distance.
What is the average speed of the whole flight?
A 111 m s–1 B 167 m s–1 C 480 km h–1 D 500 km h–1
The anwser is C, how
http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_w13_qp_11.pdfWhich year is this question in ???
For May june 2010_11, the 21st question is a little contradicting to what i saw in my book.
thanks alot taniaY
You* know that c = f x λ yes ?
now f = 1 / t
so c = λ / t
t = λ / c..
Now you can see from the figure that total wavefronts b/w XY and P is 3
so t = 3λ / c
Hence C option is correct.
I wasn't asking this, just telling which question this paper was from Thanks anywayWell, i am starting to hate physics as i go deep into it, or at-least since i started IGCSE Physics! -_-
Here is the answer:
This question can only be solved by taking an example:-
So take a distance of 1200 km
this takes 2 hours outwards, and 3 hours homewards.
Total time = 5 hours
total distance = 2400 km (Outwards and back! )
speed = 2400 / 5 = 480 km/hr .
You can take multiple examples, and still get the same answer.
Well i guess you tried adding 600 with 400 and dividing by 2 to find the average !
I like the way the members here are so eager to help each otherI wasn't asking this, just telling which question this paper was from Thanks anyway
Mass of water=1.5*1000=1500 kg
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