Concave and Convex Lenses

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

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

Convex lenses create only ____________ images.

• Real and erect

• Virtual and inverted

• Virtual and erect

• Real and inverted

Do you think our presentation was good? (POLL)

• Yes...

• No...

• Maybe.....

Concave lenses are thick in the middle and thin in the edges.

• TRUE

• FALSE

_________ 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

Tags

NGSS.MS-PS4-2

Which one of these is a convex lens?

• 
• 
• None of the above

What is reflection?

• Splitting of light

• Bouncing back of light

• Mixing of colors

• A and B

Tags

NGSS.MS-PS4-2

What is also known as a diverging lens?

• Concave lens

• Convex lens

Where are lenses used? (multiple correct)

• Telescopes

• Tables

• Eye-glasses

• Binoculars