Question

which property of reflecting telescope determines it's light gathering or light collecting power?
a.elimination of extraneous light
b.size of the primary lens
c.obstruction of ultraviolet Ray's
d.Apprehending white lights better than any other colour​

Answer 1

Answer:

The right answer is b size of the primary lens.

Explanation:

Please mark this answer as brain list.

Answer 2

Answer:

option b size of the primary lens