Question

20. Give a word or phrase for the following:
a. the point where rays of light parallel to the
principal axis converge after refraction in a
convex lens
b. the hole which lets light into the eye
c. the ability to see only objects nearby clearly
d. the part of the eye where the image is
formed
e, an image which cannot be obtained on a
screen
f. an instrument used to look at details of
tiny objects​

Answer 1

Answer:

(a) Principal Focus

(b) Pupil

(c) Shortsightedness or Myopia

(d) Retina

(e) Virtual image

(f) Magnifying glass

Thanks mate i hope this helps...

Explanation: