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