A spherical mirror and a thin spherical lens have each a focal length of 15 cm. The mirror and the lens are likely to be:
A. both concave
B. both convex
C. the mirror is concave, but the lens is convex
D. the mirror is convex, but the lens is concave
Answer:A
A spherical mirror and a thin spherical lens have each a focal length of 15 cm. The mirror and the lens are likely to be:
A. both concave B. both convex C. the mirror is concave, but the lens is convex D. the mirror is convex, but the lens is concave