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WAEC Physics 2016 Paper
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© africaexams.com
Question : 31
Total: 47
An astronomical telescope has objectives and eye-piece lenses of focal length 3.5m and 5cm respectively. Determine the magnifying power of the telescope when in normal adjustment
70.0
17.5
7.0
0.7
Validate
Solution:
Magnify power =
f
o
f
e
=
3.5
×
100
5.0
= 70
© africaexams.com
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