Question

match the following and choose the correct pair
1..lens which is thick at the
middle and thin at the edges
2.lens which is bound by two spherical b.c surfaces bent towards the same,thin
at the middle and thicker
at edges
a.bio-concave lens b.concavo -convex lens c.convexo- concave lens
a.1-a ,2-b b.1-a, 2-c c. 1-b ,2-c d. 1-b,2-a
please tell me immediately ​

Answer 1

Answer:

Yrr sorry to write but kindly explain your question to me