AQA Astronomy - Optical Telescopes

A quiz about telescopes in Astronomy, Option A AQA A2

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Refracting telescopes are made using:
Converging/convex lenses
1 of 10
Images seen through a telescope can be:
Only real
2 of 10
The focal point can be found by:
1/ (1/u +1/v)
3 of 10
How far from the objective lens is the principle focus?
The focal length of the objective lense
4 of 10
A reflecting telescope uses:
A parabolic concave mirror and a convex mirror
5 of 10
The resolving power of a telescope is:
The smallest angle at which you can distinguish between two points
6 of 10
If a mirror in a reflecting telescope isn't quite ______, it will have spherical aberration.
Parabolic
7 of 10
What causes chromatic aberration?
Different colours refracting by different amounts
8 of 10
Silicon is _______, which makes is useful in CCDs.
A semiconductor
9 of 10
Below the pixels are:
Potential wells
10 of 10

Other cards in this set

Card 2

Front

Images seen through a telescope can be:

Back

Only real

Card 3

Front

The focal point can be found by:

Back

Preview of the front of card 3

Card 4

Front

How far from the objective lens is the principle focus?

Back

Preview of the front of card 4

Card 5

Front

A reflecting telescope uses:

Back

Preview of the front of card 5
View more cards

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