Asked by Agu
An object is placed (a)6cm (b)20 from a thin convex lens of focal length 10cm.determine the nature,position and magnification of the image in each case.
Answers
Answered by
drwls
(a) and (b) are separate problems, not multiple choices.
For the first case, letting di be the image distance from the lens, use the standard lens equation
1/6 + 1/di = 1/f = 1/10
1/di = 6/60 - 10/60 = -4/60 = -1/15
di = -15 cm
The image is "virtual" upright and magnified by a ratio |15/6| = 2.5
Now you do case b
For the first case, letting di be the image distance from the lens, use the standard lens equation
1/6 + 1/di = 1/f = 1/10
1/di = 6/60 - 10/60 = -4/60 = -1/15
di = -15 cm
The image is "virtual" upright and magnified by a ratio |15/6| = 2.5
Now you do case b
Answered by
ugochukwu
i dn't no the answer for case b pls help me
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