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| 1. |
What are the rules to obtain concave mirror |
| Answer» \xa01. A ray of light which run parallel to the principal axis, after reflection, passes through the principal focus F of a concave mirror.2. A ray of light passing through the centre of curvature in a concave mirror is reflected back along the same path.\xa03. A ray of light passing through the principal focus of a concave mirror becomes parallel to the principal axis after reflection. | |