1.

Which one of the following materials cannot be used to make a lens?(b)(c)(d)GlassPlasticClayormed by a concave mirror is observed to be virtual, erect and lala)Waterbie

Answer»

I think it is option (d) clay becoz light doesn't pass through it as it is opaque

plz like my answer.....

clay because it does not let light to pass through it



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