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http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Physics (5054)/5054_w11_qp_12.pdf
plz explain mcq 22, 29 and 38 quickly.
plz explain mcq 22, 29 and 38 quickly.
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Biology; Chemistry; Physics: Post your doubts here!
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which variant?
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puray marks milain gai naa?
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Second(22)
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yar, always post the link of the question paper , PLEASE
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Indeed!!puray marks milain gai naa?
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I wanted to add variety! But didn't work!yar, always post the link of the question paper , PLEASE
http://www.xtremepapers.com/papers/...nal O Level/Physics (5054)/5054_w11_qp_22.pdf
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remember --> red towards infrared.............blue and violet towards ultraviolet!
red has greater wavelength and blue has greater frequency!
the speed like all other waves is same.
now you can do 22
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in 29, capacitor is shown, which only when completely charged will allow the current to flow in other branches, and this charging of capacitor causes the time delay!
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38, the mass decreases, right? so the atoms would be lost? it would be A
check the answers urself, these are my own guesses!
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The given energy is Kinetic! I did the same mistake!
22-The componets of light all have the same speed and so does the electromagnetic spectrum.However,red light has a greater wave length as it deviates least in the prism. so answer is C
29-A the Capacitor takes time for charging,so it causes time delay.
38.A in radioactive decay, the following things decrease to their half:
-mass
-size
-no. of atoms
-Rate of emission
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energy is neither lost nor gained. ut changes from one form to another remember?
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I got the answer but though it was wrong, but when checked from ms it came out as correct!energy is neither lost nor gained. ut changes from one form to another remember?
Simply forgot about that! Thanks!
Thanks!
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Need help Question 3
http://www.xtremepapers.com/papers/...onal O Level/Physics (5054)/5054_w04_qp_1.pdf
http://www.xtremepapers.com/papers/...onal O Level/Physics (5054)/5054_w04_qp_1.pdf
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recall law of conservation of energy
it can not be created nor destroyed. It is changed from one form to another but the total amount remains constant
K.E converted to P.E
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S
Since speed in constant, the force also has to be constant! Thus its "B"
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But the answer is D.... why????
The answer is B because there is centripetal force acting towards the centre.
A cant be the answer because P keeps on moving which causes change in velocity and hence acceleration.C and D r not possible
U checked the wrong paper its clearly written that the answer is B.
http://www.xtremepapers.com/papers/...onal O Level/Physics (5054)/5054_w04_ms_1.pdf
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is logic gates included in physics?
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Really sorry! I wrote Wrong! Constant FORCE is "B"
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