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Manikandan K
's Polls
GK
Defect of colour blindness can be remedied by the use of
A. Concave lens
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A. Concave lens
B. Convex lens
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B. Convex lens
C. Cylindrical lens
0 votes (0%)
C. Cylindrical lens
D. None of the above
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D. None of the above
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Wolmal
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