NCERT Solutions for Class 10 Science Chapter 10
Important Board Questions
Light – Reflection and Refraction
NCERT Books for Session 2022-2023
CBSE Board and UP Board
3 Marker Questions
Questions No: 2
A compound lens is made up of two thin lenses having power + 12.5 D and -2.5 D. Find the focal length and power of the combination.
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