AIIMS2011Physics-Optics
AIIMS 2011 Physics Lens Combination MCQ Question
Type: MCQ-numerical-Medium-Class 12
Two lens of focal lengths –20 cm and +10 cm are put in combination, find the power of the combination.
A
+1 D
B
-2 D
C
+5 D
D
+2 D
Correct Answer
Option C
Detailed Explanation
Focal length of combination is F = 20 cm.
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