Qualification > Sciences
IGCSE PHYSICS
@d!_†oX!©:
its very simple halp...see i the exam u wud not be asked to use this formula,....u'd be asked to make a sketch diagram..bt this is for ur own reference nd checking....simply put the values in the formula nd take out the required thing
f- focal length
So-distance of object from the center
Si-distance of image from the center
cooldude:
--- Quote from: @d!_†oX!© on November 08, 2009, 06:21:13 am ---its very simple halp...see i the exam u wud not be asked to use this formula,....u'd be asked to make a sketch diagram..bt this is for ur own reference nd checking....simply put the values in the formula nd take out the required thing
f- focal length
So-distance of object from the center
Si-distance of image from the center
--- End quote ---
u shud specify from the centre of the lens, oh yeh and about that q, i cancelled the area like aadi says. but if u want to knw the area of cross-section, its the same, if u really want to explain it u shud also say that the area of cross-section of the piston stays constant cuz the examiner can assume that the area of cross section of the cylinder remains constant (just to make it look as u knw what ur talkin about ;) )
@d!_†oX!©:
ya it'll be even better if u mentioned that...
Ghost Of Highbury:
o/n 2006 paper 3 question 8c plzz
help
@d!_†oX!©:
dude that question was looooong deleted!!!!
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