Reeta asked her teacher that which materials cannot be used to make a lens? What will be the answer given by teacher to her? rItw ny AiDAwpk nUM pu`iCAw ik ikhVI sm`grI lY`nz bxwaux leI nhIN vrqI jw skdI? AiDAwpk duAwrw iesdw kI au~qr id~qw?
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Answer:all opaque objects
Explanation:
Opaque objects do not allow light to pass so it can't be used in a lens
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