W10: Telescopes & Binoculars

Question 1

In a pair of 9 x 63 Binoculars:

a) what does “63” represents

Answer 1

• diameter of the object lenses in mm.
• size of objective lens determines the amount of light it can gather which impact their brightness and performance

Question 2

In a pair of 9 x 63 Binoculars:

a) what does “9” represents

Answer 2

• magnification power of the binoculars.
• closeness. example, 9 = object will appear 9 times closer than they would to the naked eye

Question 3

The design using a primary lens is called a

Answer 3

refracting

Question 4

The design using a primary mirror is called a

Answer 4

reflecting telescope

Question 5

By using different eyepieces, you can change the

Answer 5

magnification of a telescope

Question 6

Chromatic Aberration affects this type of telescope more

Answer 6

refracting

Question 7

The telescopes ability to gather light is dependent on

Answer 7

The diameter of the telescope