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P273 Effective focal length of two separated co-axial lenses (IAMU) View |
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What is the effective focal length of the system : Optics (Engineer Thileban Explains) View |
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OPTICS Lesson 31: Equivalent focal length(F) for two thin lenses of f1 and f2 in contact (DebKunj CLASSES) View |
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Equivalent Focal Length by Combination of two thin lenses (PHYSICS CLASSES by Dr.Ranjit Sir (Ph. D; NIT Rkl)) View |
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P284 Phase difference, path difference and coherent sources (IAMU) View |
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