Deck 30: Focusing Light

Question 1

This telescope uses lenses to gather and collect light:

A) reflector
B) refractor
C) Newtonian
D) Cassegrain

Answer 1

refractor

Question 2

The mirrors used in the Keck telescope design are

A) punctured.
B) bowed.
C) segmented.
D) wired.

Answer 2

segmented.

Question 3

Newtonian telescopes use _____ to collect light.

A) mirrors
B) lenses
C) wire mesh
D) mirrors and lenses

Answer 3

mirrors

Question 4

The largest refracting telescope ever built has a lens with a diameter of

A) 10 meters
B) 1 meter
C) 50 centimeters
D) 10 centimeters

Question 5

______ is the process of light breaking into colors as it passes through glass.

Question 6

The ___________ telescope uses mirrors and has a hole in its primary mirror.

Question 7

Reflecting telescopes' secondary mirrors block part of the light.

Question 8

Massive pieces of glass used in refractors flex and cause distortion.