C-05-Q051mediumsingle_mcq
The power of a lens being means it is a convex lens that converges a parallel beam at a distance of —
The power of a lens being means it is a convex lens that converges a parallel beam at a distance of —
- a1 cm from the optical centre
- b1 mm from the optical centre
- c1 meter from the optical centre on the principal axis
- dInfinity from the optical centre