Question

2
16. Method of producing variable power requires the use of two separate lenses, one of plus and the other of minus
power, before each eye is known as
a) Double lens system
b) Single lens system
c) Both a &b
d) None of the above​

Answer 1

Answer:

Method of producing variable power requires the use of two ... power, before each eye is known as a) Double lens system b) Single lens system c) Both a &b d) None of the above. 1.

Answer 2

Answer:

Single lens system

Explanation:

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