optical fiber
it detects the initial presence of a lasar printers beam by reflecting the beam to an optical fiber.
A CONCAVE mirror is a mirror with a reflecting surface that curves inward.
reflecting telescope gathers light from mirror
the sun is the reflected ray when it is reflecting on another mirror
a mirror
It is a mirror whose reflecting surface is curved, not flat (as in a plane mirror).
It is a mirror whose reflecting surface is curved, not flat (as in a plane mirror).
convex mirror
An external mirror is a mirror that points outward, creating views of whatever it is reflecting
The center of the spherical reflecting surface of the mirror is called the pole of the mirror.
a concave mirror
convex mirror