no except UV lights as they do not portray any shadow
Longitudinally & transverse
it reflects of the mirror. a very small part of light is absorbed by the mirror a rest of it is reflected back in the same medium . following the 1st law of reflection , a ray of light falling on a...
It can be absorbed, refracted or reflected
convex and concave are two types of lenses that are used to correct defects in vision.