Question

 A student uses spectacles of number - 2 for seeing distant objects. Commonly uses lenses for his/ her spactacles are ________. *

1 point

bi-concave

double concave

concavo-convex

convexo-concave​

Answer 1

Answer:

convexo-concave

Hope it will help..

Answer 2

A student uses spectacles of number -2 for seeing distance objects. Commonly uses lenses for his/ her spectacles are - bi-concave