The stage in a microscope holds the specimen, usually on a slide, and has an opening in it to permit light to come up through the stage and through the specimen and further on up to the optics.
Why can't light pass through what? To first contributer, don't say that. Say light cannot pass through solid, opaque objects at times.
It scatters the light
Not let light through them :D
opaque
Yes it will
it's the STAGE
The stage
the glory hole, duhhhComment: It's not the 'glory hole' so 'duhhh' to you too!
i think its i a microscope love.
Why can't light pass through what? To first contributer, don't say that. Say light cannot pass through solid, opaque objects at times.
A black hole.
That would be a black hole.
The iris (technically the diaphragm) lets light from the lens enter the camera. The entire lens can let light fall on the film or sensor. But, much of the time it doesn't do that. An device called an iris makes the hole through which light passes larger and smaller. When all the way open it lets light from the entire lens reach the film or sensor, but it can make the hole smaller and only allow light from a part of the lens enter.
it doesn't let light through
There are many materials that light can not travel through which are called opaque objects.
opaque.
Opaque