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- 1. Multiple Choice
What does a concave and convex lens have in common?
They both diverge parallel rays to a focal point
They both converge parallel rays to a focal point
Both of them are curved outwards
Both of them are curved inwards
- 2. Multiple Choice
What are the characteristics of a concave lens? (multiple correct)
It is a diverging lens
it is a converging lens
It is curved outwards
It is curved inwards
- 3. Multiple Choice
Convex lenses create only ____________ images.
Real and erect
Virtual and inverted
Virtual and erect
Real and inverted
- 4. Poll
Do you think our presentation was good? (POLL)
Yes...
No...
Maybe.....
- 5. Multiple Choice
Concave lenses are thick in the middle and thin in the edges.
TRUE
FALSE
- 6. Multiple Choice
_________ is known as refraction
The mixing of colors
the travelling of light in a straight line
The change in the path of light
The bouncing back of the light
- 7. Multiple Choice
Which one of these is a convex lens?
None of the above
- 8. Multiple Choice
What is reflection?
Splitting of light
Bouncing back of light
Mixing of colors
A and B
- 9. Multiple Choice
What is also known as a diverging lens?
Concave lens
Convex lens
- 10. Multiple Choice
Where are lenses used? (multiple correct)
Telescopes
Tables
Eye-glasses
Binoculars
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