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How much more light gathering power would a telescope with a 50 cm objective lens have than a telescope with a 25cm objective lens?
The light-gathering power of a telescope is directly proportional to the area of its objective lens. The area of a circle is calculated using the formula A = πr^2, where r is the radius of the lens.
For a 50 cm lens, the radius is 25 cm, so the area would be A = π(25)^2 = 625π square cm. For a 25 cm lens, the area would be A = π(12.5)^2 = 156.25π square cm.
Therefore, the telescope with the 50 cm objective lens would have approximately 4 times the light-gathering power of the telescope with the 25 cm objective lens.
What else can I help you with?
What makes a telescope powerful?
The light-gathering power of a telescope is determined by its aperture, which refers to the width of a telescopes primary mirror or objective lens.
What can you use to study the night sky?
its the telescope with suitable configuration of power.
What are some telescopes names?
The two types are refractor and reflector. In a refracting telescope, the light comes in THROUGH a magnifying LENS where it is REFRACTED (bent) to focus the light into an objective lens. In a reflecting telescope, the light BOUNCES OFF a curved magnifying MIRROR , and then reflected again on a secondary mirror to direct the light into an objective lens. Among the advantages of a reflecting telescope are that in a refracting lens, the thickness of the lens can absorb some of the light, while a mirror reflects all of the light. Additionally, a reflecting telescope can "fold" the telescope into a much more compact instrument, which is essential with especially large devices. A large refracting telescope would be enormously heavy and cumbersome.
What do you mean by resolving power of telescope?
The "resolving power" of a telescope is a measure of the ability of a telescope to distinguish between two separate objects that appear to be very close together in the sky.
Why do astronomers continue to build even larger telescopes?
Radio telescopes allow us to see things that can't be seen in visible light. And vice versa, optical telescopes can show things that are not visible in radio telescopes. So, the information from both kinds of telescopes really complements each other.
Why does the light gathering power of a telescope vary?
The light gathering power of a telescope is directly proportional to the area of the objective lens of the telescope.
The light gathering power of a telescope increases as the objective increases?
Yes, the light gathering power of a telescope is directly proportional to the surface area of its objective lens or mirror. A larger objective can collect more light, allowing for brighter and clearer images to be observed. This increased light gathering power is beneficial for viewing faint or distant objects in space.
What is the formula for light gathering power for telescopes?
The formula for light gathering power for telescopes is proportional to the square of the diameter of the objective lens (or mirror) of the telescope. This can be calculated using the formula: Light gathering power = (Diameter of objective lens)^2.
If the radius of an objective mirror of a telescope is tripled its light-gathering power is likely to become?
9 times greater.
If the radius of an objective mirror of a telescope is tripled how will its light gathering power be affected?
It will become 9 times as great.
Are light-gathering power and resolving power determined by the primary mirror of a telescope?
Yes, both have to do with the diameter of the objective mirror/lens
Does the diameter of a telescope control its magnification?
No, you can change the magnification of the telescope by simply changing the eyepiece. The two most important powers of the telescope, light-gathering power and resolving power, depend on the diameter of the telescope, but it does not control the magnification.
What is the ratio of the light gathering power of a m telescope with mm objective than by a telescope with a mm objective?
There's no answer to the question ... in fact, there's no question ...until you put some numbers before the 'm' and 'mm'.
How can you determine the light gathering power ratio between a 1 meter telescope and a 10 meter telescope?
The light gathering power is directly proportional to the light gathering area, so all you have to do is figure out the ratio of the areas of the two scopes. Another answer: Do you remember fourth grade arithmetic? Do you remember pi r square?
What property of an optical telescope is associated with sharper images?
The sharpness of images in an optical telescope is often associated with its resolving power, which is determined by the size of the telescope's objective lens or mirror. A larger objective size allows the telescope to collect more light and resolve finer details in the observed objects.
What makes a telescope powerful?
The light-gathering power of a telescope is determined by its aperture, which refers to the width of a telescopes primary mirror or objective lens.
What is the ratio of the light gathering power of a 1.39 m telescope to that of a 0.79 m telescope?
(1.39/0.79)2 = about 3.1 (rounded)
