CBSE Class 10 Answered
numerical
Asked by rupson | 03 Apr, 2010, 04:05: PM
f = +18 cm
v = +24 cm
u = ?
Therefore using the lens formula we get,
1/v - 1/u = 1/f
ie, 1/u = 1/v + 1/f
= 1/24 - 1/18
= (18-24)/(24x18)
= (-6)/(24x18)
= (-1)/(24x3)
= -1/72
thus, u = -72 cm.
Hope this helps
TopperLearning.com
Answered by | 08 Apr, 2010, 11:40: AM
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