![A plano-convex lens (focal length `f_2`, refractive index`mu_(2)`, radius of curvature R) fits - YouTube A plano-convex lens (focal length `f_2`, refractive index`mu_(2)`, radius of curvature R) fits - YouTube](https://i.ytimg.com/vi/i1VhD4RaI4g/maxresdefault.jpg)
A plano-convex lens (focal length `f_2`, refractive index`mu_(2)`, radius of curvature R) fits - YouTube
![Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube](https://i.ytimg.com/vi/QvTNJ-oRsV4/maxresdefault.jpg)
Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube
![What is the focal length of a double convex lens for which the radius of curvature of each surface is 60 cm (n=1.5)?A. 50 cmB. 60 cmC. 90 cmD. 30 cm What is the focal length of a double convex lens for which the radius of curvature of each surface is 60 cm (n=1.5)?A. 50 cmB. 60 cmC. 90 cmD. 30 cm](https://www.vedantu.com/question-sets/c612b172-1638-4932-aed3-6e18cb8db1583222633553042593248.png)
What is the focal length of a double convex lens for which the radius of curvature of each surface is 60 cm (n=1.5)?A. 50 cmB. 60 cmC. 90 cmD. 30 cm
![An object is situated at a distance of 15cm from a convex lens of focal length 30 cm. The position of the image formed by it will be An object is situated at a distance of 15cm from a convex lens of focal length 30 cm. The position of the image formed by it will be](https://dwes9vv9u0550.cloudfront.net/images/2822810/f3081fcd-0545-4dcb-a7a7-b540371c019f.jpg)
An object is situated at a distance of 15cm from a convex lens of focal length 30 cm. The position of the image formed by it will be
![the plane face of the plano convex lens of focal length 20cm is silverd what type of mirror will it behave and of what focal length a convex f 20cm vi a3e8dgyy - the plane face of the plano convex lens of focal length 20cm is silverd what type of mirror will it behave and of what focal length a convex f 20cm vi a3e8dgyy -](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=ba725c1d352d597a536e2a67f0324535.png&d=0)
the plane face of the plano convex lens of focal length 20cm is silverd what type of mirror will it behave and of what focal length a convex f 20cm vi a3e8dgyy -
![List four precautions a student should observe while determining the focal length of a given convex lens by obtaining the image of a distant object on a screen. List four precautions a student should observe while determining the focal length of a given convex lens by obtaining the image of a distant object on a screen.](https://www.vedantu.com/question-sets/433569ab-3995-4e8a-8e15-9c0b0aa238d86110662179537359721.png)