a line drawn from any point on a concave mirror to its centre of curvature is called
A)Normal
B)Principal axis
C)Radius of curvature
D)Focal length
Answers
Answer:
Any line drawn from C to the mirror meets it normally. The normal drawn from C through the centre P of the surface of the mirror is called the principal axis of the mirror. The point P is called the pole of the mirror.
Answer:
The line that joins the center of a concave mirror to its curvature is termed as Principal axis. Therefore, out of the given options, B) Principal Axis is the correct answer.
Explanation:
What is Principal Axis?
The principal axis is referred to as a line that passes through the centre of the surface of a round mirror or lens and through the centre of curvature of all segments of the mirror or lens.
All the main points like focus, pole, curvature, position of object, etc always lie on the principal axis. The image is also formed on the axis.