RRB Technician (Grade I Signal + Grade III) 2024 · Question 752 of 1214

A combination of two lenses of power +2.0 D and −0.25 D is equivalent to a single lens of power:

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Answer: A. +1.75 D

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Source: RRB Technician Grade 3 GK Questions: 27 Dec Shift 3 (4:30 PM - 6:00 PM) (testpaper.org compilation) · memory-based

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