Question

Why do parabolic mirrors not suffer from spherical aberration?a. all parallel rays are reflectedb. all parallel rays focus on infinityc. parabolic mirrors use a secondary mirror for correction d. parabolic mirrors have a virtual focus point

Answer 1

Parabolic mirrors do not suffer from spherical aberration. A parabolic surface brings all rays to the same focus whether or not they are close to the axis.

Answer:

a. all parallel rays are reflected