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The radius of curvature for a spherical mirror is – 40cm. What is it’s focal length and the nature of the mirror? |
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Answer» Answer: The radius of curvature is double the numerical value of the focal LENGTH of a SPHERICAL MIRROR. (The focal length is a point on the principal axis where rays coming parallel to the axis from infinity MEET.) Therefore, the answer is OPTION (D); 40 cm. |
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