12.
13.
Assertion Graphite is used in making
electrodes.
Reason Graphite is a metallic conductor
of electricity and is a corrosive material.
Assertion Presbyopia defect can be
corrected by using bifocal.
Reason Bifocal lens consists of both convex
and concave lenses.
Answers
Answered by
1
Answer:
12. A and R are true and R is correct explanation of A
13. Same as 12's answer
Explanation:
MARK ME THE BRAINLIEST
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