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Which design has a convex primary mirror and a flat secondary mirror with the eyepiece located on the top side of the telescope tube?
Wiki User
∙ 9y ago
The Newtonian reflector has a convex primary mirror and a flat secondary mirror with the eyepiece located on the top side of the telescope tube.
Wiki User
∙ 9y ago
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What telescope with 2 lenses called?
A refracting telescope uses lenses. The primary objective is the larger lens and the first point of light refraction. A smaller, secondary lens is located between the primary lens and the eyepiece as acts as another refraction device to correct or reverse the refractive aberration of the primary.
What telescope has an eyepiece lens and a mirror?
The telescope described is an optical telescope. If the primary optic is a mirror, it's a reflector, and it the primary optic is a lens, it's a refractor.
Which part of a refracting telescope forms the image?
Eyepiece, Primary Mirror, Secondary Mirror, Prime Focus.
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.
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
What telescope with 2 lenses called?
A refracting telescope uses lenses. The primary objective is the larger lens and the first point of light refraction. A smaller, secondary lens is located between the primary lens and the eyepiece as acts as another refraction device to correct or reverse the refractive aberration of the primary.
What telescope has an eyepiece lens and a mirror?
The telescope described is an optical telescope. If the primary optic is a mirror, it's a reflector, and it the primary optic is a lens, it's a refractor.
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.
Which part of a refracting telescope forms the image?
Eyepiece, Primary Mirror, Secondary Mirror, Prime Focus.
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.
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
What does an eyepiece lens act like?
It acts as a focal lens on a telescope or microscope, to magnify the image created by the primary or objective lens.
What is a reflecting telescope that used a secondary mirror to send light through a hole in the primary mirror is called?
It is called a Cassegrain. The small convex subreflector is a hyperboloid with one focus at the focus of the main mirror, and the other focus just behind the main mirror where the eyepiece is.
The primary mirror of a reflecting telescope is what kind of shape?
It is a paraboloid, which focusses the light from a star down to a single point which can then be looked at through the eye lens or eyepiece.
Show How to calculate the magnification of a telescope with a 1000mm focal length an8-inch primary mirror a 4-foot body tube and a 25 mm eyepiece?
The apparent magnification of telescope optics is(focal length of the objective) / (focal length of the eyepiece)= (1,000 / 25) = 40 .The diameter of the primary mirror has no effect on the apparent magnification.The length of the body tube is involved in the case of the Newtonian configuration,only because it has to be long enough to hold the eyepiece in the right place.
Which lens is the second lens that magnifies the object?
The eyepiece of the telescope doesn't magnify the object, but it does magnifythe real image of the object that forms at the focus of the primary lens or mirror.
Why doesn't the telescope mirror in a reflecting telescope get in the way of what you are viewing?
It does, a little. But the amount of light lost by the secondary mirror blocking the primary mirror is generally a small percentage. But to avoid even that loss, some reflecting telescopes are being built with an angled primary mirror. The secondary mirror is off-axis, meaning that the secondary mirror doesn't block ANY light from the primary.
