Optical Devices

8. A compound microscope is an optical system. Which statement does NOT describe it?

• It makes small objects look bigger.

• It is used to magnify distant objects clearly.

• It consists of two converging lens - an objective lens and an eyepiece.

• It has an eyepiece that enlarges the image created by the objective lens.

7. An optical device used to see very far or distant objects clearly is the ___.

• camera

• compound microscope

• telescope

• simple microscope

9. A simple microscope produces ___.

• an enlarged and real image

• an enlarged and virtual image

• an upright and real imge

• an upright and smaller image

The "collector", or "light-gathering part" of the telescope is called the _____

• objective
• ocular
• eye piece
• refractor

When the light comes to a focus, using a refracting telescope, it is _____

• upside-down, and flipped left and right
• only flipped left and right
• only upside-down
• unchanged

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

Reflecting telescopes use _______ to focus light.

• Lenses

• Flat mirrors

• Curved Mirrors

• A lens and lasers

A refracting telescope uses _______ to focus light.

• Lenses

• Mirrors

• Lasers

• Water

A ______ telescope uses a mirror to focus light onto a small area.

• reflecting
• refracting
• radio
• spectrum

What type of telescope is this?

• Refracting

• Reflecting

• Non-Optical
• X- Ray