a point on the principal Axis where the rays of light parallel to the principal Axis meet after reflection from the concave mirror is called the principal focus of the concave mirror .
The principle focus of concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge after reflection from the mirror.
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Explanation:
a point on the principal Axis where the rays of light parallel to the principal Axis meet after reflection from the concave mirror is called the principal focus of the concave mirror .
Answer:
The principle focus of concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge after reflection from the mirror.