Question
Physics Question on Mirrors and Images
Focal plane of a spherical mirror is
A
Line joining pole (P) and focus (F) of the mirror
B
Plane perpendicular to the principal axis at focus (F)
C
Plane perpendicular at centre of curvature (C)
D
Plane parallel to the principal axis.
Answer
Plane perpendicular to the principal axis at focus (F)
Explanation
Solution
The correct option is (B): Plane perpendicular to the principal axis at focus (F)