Lenses Flashcards
1
Q
Describe convex lenses
A
Refract parallel rays of light inwards to a single point from a principle focus
Rays converge
2
Q
Describe concave
A
Refract parallel rays of light outwards
3
Q
How to make lens more powerful
A
Make it more curved
Use a different material
= natural refracts light more strongly
4
Q
Difference between real and virtual images
A
Real
= light rays actually do come together to form the image
Virtual
= light rays don’t actually come together where image appears to be
