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A 4.5 cm needle is placed 12 cm away fro...

A `4.5 cm` needle is placed 12 cm away from a convex mirror of focal length 15 cm. Give the location of the image and the magnification. Describe what happens as the needle is moved farther from the mirror.

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`v = 6.7cm`. Magnification `= 5//9`, i.e., the size of the image is 2.5cm. As `urarroo, vrarrf` (but never beyond) while `mrarr0`
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  15. Use the mirror equation to deduct that : (a) an object between f and...

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  18. Answer the following questions : Does the apparent depth of a tank o...

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