A) 1.5
B) 2
C) 1.25
D) 1.33
Correct Answer: C
Solution :
According to lens maker?s formula The focal length of plane convex lens is or ... (i) The focal length of liquid lens is \[\frac{1}{{{f}_{1}}}=-\frac{2({{n}_{1}}-1)}{f}\] [Using (i)] Effective focal length of the combination isYou need to login to perform this action.
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