Spherical Lens - 4 || Power of a Lens || in Hindi for Class 10

In this Physics video in Hindi for Class 10 we explained what power of a lens is and what its formula is. We also discussed on its S.I. unit known a dioptre which is defined as per meter. 0:00 Introduction 2:13 Convex Lens and Concave Lens 2:38 Principal focus and Focal length of Convex lens 3:22 Power of a Convex Lens 4:42 Equation of Power of a Lens 5:51 S.I. Unit of Power of a Lens 6:47 Power of lens with focal length of 25 cm 9:24 Power of lens with focal length of 50 cm 10:21 Principal focus and Focal length of Concave lens 12:11 Power of lens with focal length of -25 cm 13:36 Focal length of a lens with power -5 dioptre 15:01 Power of a combination of lenses šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡ š‘·š‘³š‘Øš’€š‘³š‘°š‘ŗš‘» šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡ šŸ”“ Click here to watch the whole playlist on Chapter 10 : 'Light - Reflection and Refraction' for Class 10 :    • LightĀ -Ā ReflectionĀ andĀ RefractionĀ (Introdu...Ā Ā  šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡ š‘·š’“š’†š’—š’Šš’š’–š’” š‘½š’Šš’…š’†š’š’” šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡šŸ‘‡ šŸ”“ Light - Reflection and Refraction (Introduction)    • LightĀ -Ā ReflectionĀ andĀ RefractionĀ (Introdu...Ā Ā  šŸ”“ Spherical Mirrors (Introduction)    • SphericalĀ MirrorsĀ -Ā 1Ā (Introduction)Ā ||Ā in...Ā Ā  šŸ”“ Spherical Mirrors - 2 || Image Formation by Spherical Mirrors    • SphericalĀ MirrorsĀ -Ā 2Ā ||Ā ImageĀ FormationĀ b...Ā Ā  šŸ”“ Spherical Mirrors - 3 || MIRROR FORMULA and SIGN CONVENTION    • SphericalĀ MirrorsĀ -Ā 3Ā ||Ā MIRRORĀ FORMULAĀ an...Ā Ā  šŸ”“ Spherical Mirrors - 4 || MAGNIFICATION    • SphericalĀ MirrorsĀ -Ā 4Ā ||Ā MAGNIFICATIONĀ ||Ā ...Ā Ā  šŸ”“ Prove that R = 2f || Spherical Mirror - 5    • SphericalĀ MirrorĀ -Ā 5Ā ||Ā ProveĀ thatĀ RĀ =Ā 2fĀ ...Ā Ā  šŸ”“ Refraction of Light    • RefractionĀ ofĀ LightĀ ||Ā inĀ HindiĀ forĀ ClassĀ 10Ā Ā  šŸ”“ Refractive Index    • RefractiveĀ IndexĀ ||Ā inĀ HindiĀ forĀ ClassĀ 10Ā Ā  šŸ”“ Refraction Through a Rectangular Glass Slab    • RefractionĀ ThroughĀ aĀ RectangularĀ GlassĀ Sla...Ā Ā  šŸ”“ Refraction by Spherical Lenses    • SphericalĀ LensĀ -Ā 1Ā ||Ā RefractionĀ byĀ Spheri...Ā Ā  šŸ”“ Image formation by Lenses    • SphericalĀ LensĀ -Ā 2Ā ||Ā ImageĀ formationĀ byĀ L...Ā Ā  šŸ”“ Lens Formula & Magnification with Sign Convention    • SphericalĀ LensĀ -Ā 3Ā ||Ā LensĀ FormulaĀ &Ā Magni...Ā Ā