How does a microscope magnify an image?
Compound light microscope uses two convex lenses with relatively short focal lengths to magnify small, close objects
How is a reflecting telescope similar to a microscope?
Both have an objective lens and an eyepiece lens.
How is a reflecting telescope different from a refracting telescope?
Reflecting uses uses a concave mirror, a plane mirror, and a convex lens to collect and focus light from distant objects. Refracting uses an objective lens and an eyepiece lens.
Why is the Hubble Space Telescope able to produce clearer images than telescopes on Earth?
Because earth's atmosphere blurs the view of objects in space.
What is the function of prisms in binoculars?
They are actually two refracting telescopes mounted side by side.
How does the focal length of a telephoto lens compare to the focal length of a wide-angle lens?
Telephoto has a bigger focal length.
What are two ways in which a camera is similar to a human eye?
Lens cap for a camera to the human eyelid.
What are two ways in which a camera is different from a human eye?
Changing the distance between the lens and the detector does the focussing in a camera.