Define pole , principal axis , focal point and centre of curvature of a mirror using diagram
Answers
Explanation:
Principal axis: The straight line joining the pole (P) and the centre of curvature. It is normal to the mirror at its pole. ... The reflecting surface of the mirror. Focus: The point of the principal axis at which the rays parallel to principal axis meet (concave mirror) or appear to meet (convex mirror) after reflection.
Answer:
Pole (P): The centre point of the reflecting surface of a spherical mirror is known as pole of the mirror.
Principal Focus/Focal point (F): If a ray is drawn parallel to the principal axis, it converges/appears to diverge from a point, this point is called the principal focus.
Centre of curvature (C): The centre of the sphere of which the mirror forms a part of is called centre of curvature.
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