Deck 29: Collecting Light

Question 1

The VLT (Very Large Telescope) is a group of 4 telescopes located in

A) the Canary Islands.
B) Chile.
C) Arizona.
D) Hawaii.

Answer 1

Chile.

Question 2

The device to pass only narrow wavelengths of light is called a(n) ______.

A) aperture
B) coherent
C) collecting device
D) filter

Answer 2

filter

Question 3

The V filter used in astronomy is

A) 390 to 480 nm.
B) 500 to 590 nm.
C) 570-710 nm.
D) 710-950 nm.

Answer 3

500 to 590 nm.

Question 4

Collecting area is directly dependent on the ____ squared.

A) radius
B) thickness
C) focus
D) wavelength

Question 5

_____________ means the light stays in unison as it bounces off optical surfaces.

Question 6

The ___________ is the diameter of the telescope.

Question 7

The collecting area of a telescope is dependent on the wavelength.

Question 8

A large radio telescope is the Arecibo 300 meter scope.