A reflecting telescope is built with a -diameter mirror having an m focal length. It is used with an eyepiece.
(a) the magnification?
(b) the of the telescope?
(a). The magnification is .
(b). The of the telescope is.
We need to find the magnification.
Here magnification of the eye, is the magnification of a telescope,focal length of the eye.
We need find the f - number of telescope.
Here is focal length is the diameter.
Infrared telescope, which use special infrared dictators, are able to do peer farther into star-forming regions of the galaxy because infrared light is not scattered as strongly as is visible light by the tenuous clouds of hydrogen gas from which new stars are created. for what wavelength of light is the scattering only that of light with visible wavelength of ?
Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.0 cm, the other 1.0 cm. You plan to use the more powerful lens as the objective, and you want the eyepiece to be 16 cm from the objective.
a. For viewing with a relaxed eye, how far should the sample be from the objective lens?
b. What is the magnification of your microscope?
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