Recent content by bomberkid

but if i were to use f=3m, and a is F/5m, i wouldn't get 2f/5 as the answer

I see. Why not use the mass 3m?

F?

Homework Statement . question is as attached. answer is 2f/5..how do u get this? Homework Equations F=ma F= (5m)a a= F/(5m) The Attempt at a Solution gotten a=F/5m , but why the answer is 2f/5?

yup sorry..the dashing is actually the normal from the light to the mirror.. Is the drawing correct now? :)

Hi BvU, I sort of get it now, do u mean like this? Thanks for ur help, hopefully I am a little right this time, but The rays don't intersect though..

now i am at a loss ..

yes..i checked with a simpler diagram of a thin lens image formation.. but with the image in the mirror i am not sure where am i even sposed to begin drawing. everything that i have drawn is kinda trial and error..

hmm ok.. where should the lower ray pass through then?

thanks for your help everyone... i believe i have gotten the correct answer from reading all your posts :)) attached is my new drawing, isit correct?

Well I drew the lines thinking that the light ray got to pass through one of the focal length, and another through the center of the lens. But that's totally wrong, the examiner totally marked it wrong.. So I don't think its correct. Maybe u can show me.what is the right drawing?

hihi, sorry for the confusion, this is my test paper, all the lines drawn are wrong and just based on my guesswork, except for the normal. this is the original question, as attached. i have erased all the lines that were drawn wrongly, except for the normal at the plane mirror. that's the only...

thanks so much for your input haruspex..but pardon me, i still can't grasp how should i draw it..should i be drawing the image of the light in the mirror? if my light ray coming from the torch is reflected in the mirror, should i be drawing an angle of incident and reflection at a normal to the...

Homework Statement Hi please help me with these 2 ray diagrams... the questions is as stated in the attachment..i have no idea where to start drawing and whatever i have drawn is wrong for both qns.. thanks a lot experts! Homework EquationsThe Attempt at a Solution