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Two triangular prisms are used in the design of a periscope to reflect the incoming light rays at 90 degree angles. They are first reflected down periscope, then again towards the eye.

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11y ago

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Does binocular use lens?

Yes, binoculars use similar lenses to telescopes but with a system of prisms to fold the light path to permit binoculars to be much shorter than a regular telescope.


What these are used for binoculars?

Binoculars are distinguished from telescopes through the use of "folded optics". That is, the light path is folded into the body, allowing a compact design. Rather than mirrors, prisms are used to reflect the light.


Why do telescopes for astronomy not have prisms?

Some telescopes do. These are usually at the eyepiece end of a refractor telescope (i.e. one with the lens at the top and you look through the bottom end. The prism bends the light at right angles so you don't get a stiff neck. The prism makes viewing more comfortable. I use one on my telescope.


What other kinds of radiation are detected by telescopes?

Researchers use all of these: -- optical telescopes -- radio telescopes -- x-ray telescopes -- infra-red telescopes -- ultraviolet telescopes


Do astronomers or nasa use refracting telescopes?

Yes, both of them. And they also use reflecting telescopes.


What are the tools scientist use observe objects in the night sky?

Scientists use telescopes, such as optical telescopes, radio telescopes, and space telescopes, to observe objects in the night sky. They also use instruments like spectrographs and cameras to analyze the light from celestial objects and gather data for research and study.


What are the largest telescopes used for observations in the visible region of the spectrum?

The largest telescopes that use visible light are reflector telescopes.


What tool do astronomers use to study space?

they use space probes,satellites,and of coarse,telescopes.


How many types of prisms are there?

There are many types of prisms such as rectangular prisms,polyganic prisms crossed prisms and etc.


What are the largest telescopes used for observations in the visible region of the spectrum called?

The largest telescopes that use visible light are reflector telescopes.


What do astronomers use to look at planets?

Their eyes, ground-based telescopes, space telescopes.


Do telescopes use energy?

Yes. It takes energy to move them in the correct direction. In home telescopes, this is done by hand (energy from your muscles), in large telescopes they use some kind of motors to do that.