A convex lens has focal length of 2.0 cm. Find its magnifying power if image is formed at DDV.
A convex lens has focal length of 2.0 cm. Find its magnifying power if image is formed at DDV.
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Given: f = 2 cm, v = D = 25 cm
To find: Magnifying power (M.P.)
Formula: M.P = 1 + \(\frac{D}{f}\)
Calculation:
From formula,
M.P = 1 + \(\frac{25}{2}\)
M.P. = 1 + 12.5 = 13.5
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