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State the Two Convenient Rays that Are Chosen to Construct the Image by a Spherical Mirror for a Given Object? Explain Your Answer with the Help of Suitable Ray Diagrams.

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Question

State the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain your answer with the help of suitable ray diagrams. 

Answer in Brief
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Solution

Two convenient rays that are chosen to construct the image by a spherical mirror for a given object:

  1. A ray passing through the centre of curvature:A ray of light passing through the centre of curvature of a concave mirror or a ray directed in the direction of centre of curvature of a convex mirror is reflected back along the same path after reflection.

2. A ray parallel to the principal axis: A ray of light parallel to the principal axis, after reflection pass through the principal focus in case of a concave mirror or appears to diverge from it in case of convex mirror. 

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Chapter 7: Reflection of Light - Exercise 7 (C) [Page 171]

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Selina Concise Physics [English] Class 9 ICSE
Chapter 7 Reflection of Light
Exercise 7 (C) | Q 12 | Page 171

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