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What happens if you decrease a telescopes eyepiece focal length?
Wiki User
∙ 8y ago
The magnification of the telescope image is
(focal length of the objective) divided by (focal length of the eyepiece).
The focal length of the objective is fixed.
Decreasing the focal length of the eyepiece increases the magnification of the image.
(But it also makes the image dimmer.)
Waldo Mayer
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How can the magnifying power of a telescope be increased?
a telescope's magnification is calculated as the ratio of the focal length of the primary objective to the focal length of the eyepiece. Since a telescope is defined by the primary objective, this part of it is essentially unchangeable. Therefore, the way to increase magnification is to decrease the focal length of the eyepiece. For example, a 1000mm objective and a 25mm eyepiece yields a magnification of (1000/25) 40x. Changing the eyepiece to a 10mm eyepiece increases magnification to (1000/10) 100x.
What will decreasing a telescope's eyepiece focal length?
The magnification of the telescope image is(focal length of the objective) divided by (focal length of the eyepiece).The focal length of the objective is fixed.Decreasing the focal length of the eyepiece increases the magnification of the image.(But it also makes the image dimmer.)
What happens to a wave when you decrease the wave length?
When you shorten the wave length, you increase the amplitude.
What happens to the active force with a decrease in the muscle length?
It decreaseses.
If the primary mirror of a telescope have a focal length of 225 centimeters and the eyepiece has a focal length of 7.5 millimeters then what is the magnifying power of the telescope?
The magnifying power of a telescope is the focal length of the scope in millimeters, divided by the focal length of the eyepiece in millimeters. Focal length of scope: 225cm=2250mm Focal length of eyepiece: 7.5mm 2250/7.5= 300X
How does the eyepiece affect the total magnifacation in a telescope?
A telescope consists of two lenses. 1) The main lens which collects the light ( it is relatively bigger that eyepiece). 2) Eye piece , through which we see. Magnification of a telescope depends on the focal length of the eye piece and the main lens. Magnification = Focal length of the main lens / Focal length of the eyepiece . For example : If the focal length of the main lens is 12 units and the focal length of the eyepiece is 2 units , then the magnification will be 12/2 = 6.When the focal length of the main lens is constant , the focal length of the eyepiece is inversely proportional to the magnification.
What is the power of the eyepiece?
The magnification, or power, at which a telescope is operating is a function of the focal length of the telescope's main (objective) lens (or primary mirror) and the focal length of the eyepiece employed.
Would the ocular unit increase or decrease as magnification increases?
Field of view will decrease as the aperture remain same but things become larger and so we can see smaller area after magnification
Telescope magnification power with a 30 mm eyepiece for a telescope?
That all depends on the focal length of the telescopes objective mirror or lens, which is not stated in the question. Find the focal length of the main lens at the front of the tube, or the main mirror at the back. It's printed somewhere on the telescope itself, or else on the box it came in. Make sure the number is in millimeters, and then divide it by 30 (the focal length of your eyepiece). The answer is the magnification you'll get with that particular eyepiece in that particular scope.
How do you calculate magnification?
Divide the focal length of the objective lens by the focal length of the eyepiece.
How much magnification does a eyepiece have?
The amount of magnification depends on the focal length of the eyepiece.
What is the single most important component of a telescope?
the diameter of the eyepiece, the diameter of the objective, the focal length of the eyepiece or the number of mirrors used to form the image?
