an arrow of length 15 cm is placed along the axis of a concave mirror .its sharp end is at a distance of 30 cm from the mirror and the radius of curvature of the mirror is 20 cm. calculate the magnification of the image of the arrow.
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Height of object = 2cm Object distance = 15cm Focal length = 10cm 1/f = 1/v ... Position - 30 cm from concave mirror ... We can find out the image distance v.
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