Why is it beneficial to use a parabolic mirror instead of an objective convex lens in a telescope? Choose the most correct answer.
1
Parabolic mirrors do not have chromatic aberrations as compared to convex lenses.
2
Parabolic mirror does not have spherical aberration as compared to convex lens.
3
Parabolic mirror does not have color astigmatism and spherical aberration compared to a convex lens and the mirror is lighter than a convex lens.
4
A parabolic mirror is lighter than a convex lens.