Unit 3 - Topics 4-5

Far-sightedness means the light passing through your lens will converge somewhere behind the retina

• True

• False

A convex lens is thinner and flatter in the middle than at the edges

• True

• False

Mr. Francis is likely to have a closer near point than all of his students

• True

• False

The blind spot is the point where the ciliary muscles attache to the lens of the eye

• True

• False

The role of the humours in the eye is to provide tears

• True

• False

A concave lens will cause light rays to diverge

• True

• False

A reflecting telescope uses a concave mirror to diverge the light rays from a distant object

• True

• False

Light in binoculars travels down the short tube of two refracting telescopes mounted side by side.

• True

• False

The Canada France Hawaii Telescope (CFHT) uses as concave mirror that is 36m in diameter

• True

• False

A refracting telescope forms a virtual image from converging light rays

• True

• False