Extending Human Vision with Telescopes Quiz

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What is the main function of the humours in the eyeball?

To prevent tears from forming

To change eye color

To refract light entering the eye (correct)

To help the eye collapse

In a refracting telescope, what is the function of the eyepiece lens?

To enlarge the image (correct)

To collect light

To form a real image magnified by the objective lens

To help the telescope collapse

What is the name of the lens used in a refracting telescope to collect and focus light from a distant object?

Objective lens (correct)

Concave lens

Eyepiece lens

Primary mirror

How does a reflecting telescope collect rays of light from a distant object?

Using a primary mirror Signup and view all the answers

For a telescope to achieve the greatest magnification, what is important in terms of distance?

Increased distance between the object being viewed and its image Signup and view all the answers

Which part of the eyeball is responsible for preventing it from collapsing?

Humours Signup and view all the answers

What part of the eye controls the amount of light entering?

Iris Signup and view all the answers

Which device in a camera is responsible for controlling the aperture?

Diaphragm Signup and view all the answers

What is the natural adjustment in the size of pupils called?

Iris reflex Signup and view all the answers

What part of the eye does not contain light sensitive cells?

Blind spot Signup and view all the answers

When light hits the light-sensitive chemicals in the film, what do they form?

An image Signup and view all the answers

In a camera, where are the parts housed?

Rigid light-proof box Signup and view all the answers

What serves as plane mirrors in binoculars?

Prisms Signup and view all the answers

What type of lenses are used in compound microscopes to magnify the object?

Convex lenses Signup and view all the answers

Which scientist used a simple convex lens to view bacteria magnified about 280 times?

Anton Van Leeuwenhoek Signup and view all the answers

In a compound microscope, what is used to improve the sharpness of the image?

Objective lens Signup and view all the answers

What type of lenses are commonly used in magnifying glasses?

Convex lenses Signup and view all the answers

What is the main purpose of placing prisms inside binoculars?

To shorten the telescopes Signup and view all the answers