a) when a convex lens of focal lenght f is cut latitudinally.......... thenn focal lenth of each part is.....
b)when a convex lens of focal lenght f is cut longitudinally..............thenn focal lenth of each part is.....
PLS EXPLAIN WHY????
a) when a convex lens of focal lenght f is cut latitudinally.......... thenn focal lenth of each part is.....
b)when a convex lens of focal lenght f is cut longitudinally..............thenn focal lenth of each part is.....
PLS EXPLAIN WHY????