5.3 Flashcards
(15 cards)
Where is a concave lens the thinnest
In the middle
What is a lens
Transparent material that can bend of refract rays
Where is a convex lens the thickest
In the middle
When a light ray entries another material that is denser which way does it bend
Towards the normal
Wen a light ray entries a less dense material or leaves one which way does it bend
Away from the normal
How does a lens change light rays
So that they converge or diverge
What way do light rays move after shinning through a concave lens
They diverge
What way do light rays move after shinning through a convex lens
They converge
In a concave lens what does it make an object when looked through
Smaller and upright
What is a focal length
The distance from the centre of the lens or mirror to the focal point
What is a focal point
The spot where parallel right rays bounce off a concave mirror then meet at a single point
What will the ages orientation be of the image when looked through a convex lens 2 or more focal lengths away
Inverted/upside down and smaller
1-2focal lengths away from the convex lens?
Inverted and larger
What is the images orientation through a convex lens at the focal point
There is no images
1or less focal lengths away from the convex lens
Larger and up right
