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yesi think its answer is B
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yesi think its answer is B
Revise the 3 paths of light for converging lens.Is type ke questions nae samaj ate.anyone explain me how to handle these type of questions..
they R bending inside the lens..all the rays(excluding one passing thru the centre of course)There is bending inside the lens as well and you are not taking that into account for the rays not parallel to Principal Axis.
P = E/tthis one as well
EMF is of an electrical source.Consider a battery,it will have an e.mf of say 8VWhats the main difference between EMF / Voltage/ Potential difference ?
P=IV
oh.. thanks!!P=IV
T1=250 x 0.1=25W
T2=12 x 2= 24 W
Efficiency = 24/25=0.96
But you wouldn't know how much.they R bending inside the lens..all the rays(excluding one passing thru the centre of course)
Sacrifice for people from your own clanNo.Ek dafa bura paper karo aur hamare liay gt low karo plzzz
In the first part,
I don't know if it was only me or not.But I had been given no info abt centripetal force whtsoever except tht it,s perpendicular and all tht.I hooked it up on the internet and must say tht I have grasped tht concept fully.Needless to sya,A more detailed study abt this force shud have been include in our syllabus.But you wouldn't know how much.
Answer this:
http://papers.xtremepapers.com/CIE/Cambridge International O Level/Physics (5054)/5054_s11_qp_12.pdf
Q3. Why isn't the resultant force C?
The car turns in the direction of the resultant force but the centripetal force is towards the center of the circle. There are two forces on the car one from the engine and one due to friction (Centripetal). The resultant is because of the different directions of the these forces. Right? So if we use a graphical method the resultant direction should be in the direction of C?
How did you figure it out that ray 1 will not be refracted but internally reflected?The normals are in red and the rays are in green. For Ray 2 the angle of incidence and reflection must match what is given in the question. I've just drawn an estimate.
why won't diameter affect?In the first part,
Diameter of the tube does not affect the height. Thus the height difference will still be 30.
h is inversely proportional to the density. If we halve the density, h will double, and will be 60
It is mentioned that angle of incidence is greater than critical angle.How did you figure it out that ray 1 will not be refracted but internally reflected?
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