Geometrical optics Definition and 55 Threads

I have my question,doubt and solution in the attachment that followed.Thanks for anybody that spend some time on this question.Sorry to say that the file format is *.zip .

Hey guys and gals...i am really stuff on dis question.. n i really need 2 knw homework 2 do dis.. so ne1 please help..n post der views...cheers! Design a converging achromatic lens of focal length 100cm. Refractive indices and dispersive powers for the two glasses available are 1.51 and 0.016...

Geometrical optics help?? Design a converging achromatic lens of focal length 100cm. Refractive indices and dispersive powers for the two glasses available are 1.51 and 0.016 for crown glass and 1.61 and 0.026 for flint glass. The converging element of the achromat is to be bi-convex and the...

Hi Could someone point me to websites with tutorials on the real-virtual sign convention for geometric optics (and possibly other known conventions too)? I've been googling for some time but the results aren't too satisfying. PS--Tutorials with mathematics are preferred... Thanks and...

I just have a few questions on geometrical optics. 1. Why do the hands of a clock move counterclockwise in a mirror? 2. If you move farther away from a plane mirror, will you be able to see more of yourself or less? 3. How do you decide if the image in a mirror is real or virtual...