G 9 Quiz

A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is:

• 10

• 20

• 50

• 25

What is the main function of a telescope?

• To illuminate surfaces

• To capture images

• To view distant objects

• To magnify small objects

What type of lens is used in a microscope?

• Concave lens

• Convex lens

• Plane lens

• Diverging lens

Modern telescopes are reflecting because: (Choose all that apply)

• Lenses are difficult to manufacture

• Lenses are heavy and fragile

• lenses absorb light that passes through them

• Lenses require only 1 perfect surface

Both reflecting and refracting telescopes are designed to

• break visible light into colors of the spectrum.
• separate visible light from ultraviolet and radio waves.
• gather and focus visible light.
• work better with short-wavelength radiation.

Reflecting telescopes differ from refracting telescopes in having

• no eyepiece lens.
• two large objective lenses.
• a mirror instead of an objective lens.
• one large objective lens.

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

• reflecting
• refracting
• radio
• spectrum

A ______ telescope uses a glass to focus light. 

• reflecting
• refracting
• radio
• spectrum

What type of telescope is this?

• Refractor
• Reflector
• Non-Optical
• X- Ray

What type of telescope is this?

• Refractor
• Reflector
• Non-Optical
• X- Ray