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

👇👇👇👇👇👇 𝑷𝑳𝑨𝒀𝑳𝑰𝑺𝑻 👇👇👇👇👇👇

🔴 Click here to watch the whole playlist on Chapter 10 : 'Light - Reflection and Refraction' for Class 10 :
   • Light - Reflection and Refraction (Introdu...  

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🔴 Light - Reflection and Refraction (Introduction)
   • Light - Reflection and Refraction (Introdu...  

🔴 Spherical Mirrors (Introduction)
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🔴 Spherical Mirrors - 2 || Image Formation by Spherical Mirrors
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🔴 Spherical Mirrors - 3 || MIRROR FORMULA and SIGN CONVENTION
   • Spherical Mirrors - 3 || MIRROR FORMULA an...  

🔴 Spherical Mirrors - 4 || MAGNIFICATION
   • Spherical Mirrors - 4 || MAGNIFICATION || ...  

🔴 Prove that R = 2f || Spherical Mirror - 5
   • Spherical Mirror - 5 || Prove that R = 2f ...  

🔴 Refraction of Light
   • Refraction of Light || in Hindi for Class 10  

🔴 Refractive Index
   • Refractive Index || in Hindi for Class 10  

🔴 Refraction Through a Rectangular Glass Slab
   • Refraction Through a Rectangular Glass Sla...  

🔴 Refraction by Spherical Lenses
   • Spherical Lens - 1 || Refraction by Spheri...  

🔴 Image formation by Lenses
   • Spherical Lens - 2 || Image formation by L...  

🔴 Lens Formula & Magnification with Sign Convention
   • Spherical Lens - 3 || Lens Formula & Magni...