A spherical mirror and a thin spherical lens have each a focal length -15 cm. The mirror and lens are likely to be _____
A. Both are convex
B. Both are concave
C. Mirror is concave but lens is convex
D. Mirror is convex and lens is concave.
Answer:B
A spherical mirror and a thin spherical lens have each a focal length -15 cm. The mirror and lens are likely to be _____
A. Both are convex B. Both are concave C. Mirror is concave but lens is convex D. Mirror is convex and lens is concave.