Recent content by beethoven'smahomeboy

A plano-convex glass lens of radius of curvature 1.8 m rests on an optically flat glass plate. Before the lens is placed on the plate a film of oil of refractive index 1.78 is deposited on the plate. The arrangement is illuminated from above with monochromatic light of 480-nm wavelength. The...

An object is 15 cm from a converging lens of focal length 15 cm. A second positive lens of focal length 15 cm is 20 cm from the first lens. Where is the final image (s)? Since 1/15+1/s=1/15 by the thin-lens equation, is there an image formed?

I figured as much after working with it for a while, but I thought I might have just been missing something. How does one solve it then?

Help me solve for x in detail please: 8^x+13^x=108 Simply done graphically, but algebraically?

In the context of Newtonian mechanics, why are gyroscopes good navigational instruments? What is the best shape for a gyroscope?