Question

the centre point of a lens is called as the main focus​

Answer 1

Answer:

yes........

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Answer 2

Answer:

❥

If the ray through any point goes through it without any bending, deviation and reflection from its path, that point can be considered as an optical centre. Principal focus is the point where the beam parallel to the principal axis passes through or appears to pass through that point after passing through the lens.