Physics, asked by ashapaul, 1 year ago

Explain bifocal lenses

Answers

Answered by ishajaan

bi focal lens contains both lens concave and convex means person is suffering from pressbyopia

Answered by Anonymous

It is a lens which is specially for presbiopia gye
actually it is a glass which consists of two lenses the concave lens is on top and covex lense at below ...
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