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Download eSaral AppRay Optics in Class 12th comprises variety of cases with important formula and key points. So here is the mind map to help you in remembering all the formula and important key concepts on finger tips.
Mind Map of Reflection of Light
Mind Map of Refraction
Mind Map of Optical Instruments
Thank you sir.
ya
when two lenses are combined together then the focal length
Thanks sir excellent master mind map