![Define the following terms in the context of spherical mirrors : (i) Pole (ii) Centre of curvature (iii) Radius of curvature (iv) Principal axis (v) Principal focus Define the following terms in the context of spherical mirrors : (i) Pole (ii) Centre of curvature (iii) Radius of curvature (iv) Principal axis (v) Principal focus](https://d10lpgp6xz60nq.cloudfront.net/physics_images/NVT_21_SCI_TECH_P1_X_C09_E06_012_S02.png)
Define the following terms in the context of spherical mirrors : (i) Pole (ii) Centre of curvature (iii) Radius of curvature (iv) Principal axis (v) Principal focus
![For more information about thin spherical lens, define : (a) First principal focus (F1) (b) Second principal focus (F2) (c) Optical centre (C) (d) Focal length (f) For more information about thin spherical lens, define : (a) First principal focus (F1) (b) Second principal focus (F2) (c) Optical centre (C) (d) Focal length (f)](https://d10lpgp6xz60nq.cloudfront.net/physics_images/KPK_AIO_PHY_XII_P2_C09_E01_035_Q01.png)
For more information about thin spherical lens, define : (a) First principal focus (F1) (b) Second principal focus (F2) (c) Optical centre (C) (d) Focal length (f)
![what is an optical centre of a lens - Physics - Ray Optics And Optical Instruments - 1920470 | Meritnation.com what is an optical centre of a lens - Physics - Ray Optics And Optical Instruments - 1920470 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/2191102/2012_03_10_10_51_20/ywfrtyhw9013676390721381227.jpg)
what is an optical centre of a lens - Physics - Ray Optics And Optical Instruments - 1920470 | Meritnation.com
![what is an optical centre of a lens - Physics - Ray Optics And Optical Instruments - 1920470 | Meritnation.com what is an optical centre of a lens - Physics - Ray Optics And Optical Instruments - 1920470 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/2191102/2012_03_10_10_51_20/aacqtktf1738798458804604083.jpg)