fill in the blanks.
__________ lens is used in spectacles to treat long sightedness.
tick the correct option.
The lens used to correct short sightedness is
(a) convex
(b) double convex
(c) concave
(d) planoconcave
Answers
Answered by
0
Answer:
concave lens
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Answered by
0
Answer:
planoconcave
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