double concave lens
a lens such that a parallel beam of light passing through it is caused to diverge or spread out
A lens.
double concave lens
To diverge the light rays that pass through it.
"A convex mirror is sometimes referred to as a divergingmirror due to the fact that incident light originating from the same point and will reflect off the mirror surface and diverge."So, a convex mirror will reflect and diverge (scatter) the incident light rays (it produces a virtual image), while a convex lens will do the opposite. It will converge light rays passing through it.
a lens such that a parallel beam of light passing through it is caused to diverge or spread out
Actually the negative lens just sits there. It causes a parallel beam of light to diverge. It causes a convergent beam to converge less. It causes a divergent beam to diverge more.
A lens.
double concave lens
To diverge the light rays that pass through it.
Converging. Tip: look at the pictures and read : http://en.wikipedia.org/wiki/Lens_(optics)
"A convex mirror is sometimes referred to as a divergingmirror due to the fact that incident light originating from the same point and will reflect off the mirror surface and diverge."So, a convex mirror will reflect and diverge (scatter) the incident light rays (it produces a virtual image), while a convex lens will do the opposite. It will converge light rays passing through it.
because when light hits a different martial it slows and change it direction like ridingbike from the road on to the sand.
The condenser adjusts the amount of light passing through the specimen.
Light rays converge as well as diverge. it depends upon the type of lens or mirror you pass it through. A concave lens or a convex mirror diverges the light whereas a convex lens or a concave mirror converges the light rays!
You can split white light into a spectrum of its component wavelengths by passing it through a prism, not a prison.
Current passing through a special wire like tungsten heat up the wire and create light by emitting photons