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A refracting telescope uses two lenses - an objective lens to gather light and focus it and an eyepiece lens to magnify the image.

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1y ago

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What uses two lenses and two mirrors?

On eyeglasses? Two lenses = bifocals Three lenses = Trofocals


How many lenses do binoculars have?

It depends on the type of reflecting telescope.


Which type of telescope did Galileo turn skyward in 1610?

Galileo turned a refracting telescope, which uses lenses to gather and focus light, skyward in 1610. This allowed him to make groundbreaking astronomical observations such as the moons of Jupiter and the phases of Venus.


List two uses for concave lens?

Both concave and convex lenses are used in glasses; A microscope, like a reflecting telescope, uses a concave mirror, a plane mirror, and a convex lens; A refracting telescope uses two convex lenses to magnify images in the sky; binoculars use concave lenses to improve detail.


How many convex lenses does a refracting telescope have?

At least two, but may have many. Depends on the design of the telescope.


Where is the focus of a refracting telescope?

The focus is between the two lenses, closer to the eyepiece


Was the telescope created by accident?

The first telescope was invented by Hans Lipperhey , a Dutch lens grinder, in 1609 when he combined two lenses.


When was the earliest telescopes and how were constructed of two lenses in a long hollow tube?

optical telescope


How far apart are the two lenses of a refracting telescope?

The distance between the two lenses of a refracting telescope depends on its design and purpose. Typically, the lenses are separated by a distance equal to the sum of their focal lengths. This separation allows the lenses to work together to focus light and form an image.


What was the two lenses called on the refracting telescope?

The two lenses on a refracting telescope are typically called the objective lens (at the front of the telescope) and the eyepiece lens (at the back of the telescope). The objective lens gathers and focuses light from distant objects, while the eyepiece lens magnifies the focused image for the viewer.


The earliest telescopeswhich were constructed of two lenses in a long hollow tube are called?

optical telescope


What uses two convex lenses to magnify small close objects?

A _____________ uses two convex lenses to magnify small, close images.