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CBSE Class 10 Answered

numerical
Asked by | 25 May, 2009, 09:35: PM
answered-by-expert Expert Answer

h = 2 cm; f = 12 cm; u = - 8 cm;

h' = ?; v = ?; nature = ?

using mirror formula

(1 / v) + (1 / u) = (1 / f)

(1 / v) = (1 / 12) + (1 / 8) = 5 / 24

v =  24 / 5 cm

since m = - v / u = h' / h

h' = - v x h / u = 24 x 2 / 5 x 8 = 1.2 cm

image will be erect and virtual.

Answered by | 30 May, 2009, 09:40: AM

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