Tue 20 Feb, 2007 02:34 pm - ok
ok fair enough i agree with what you say altho you can put the oil in a beaker as the light will refract through the glass aswell therefore giving the wrong refraction! (view)
Tue 20 Feb, 2007 07:41 am - hi im doing a question on gradients of graph but how do i work out the uncertainty if i have found the gradient by dividing sin i by sin r both amounts are to 2 decimal places!! please help (view)
Tue 20 Feb, 2007 06:58 am - why does the refractive index of oil change when heated? and how would you
measure the refractive index at a certain temperature? (view)
