![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)
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.
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To find the focal length of a concave lens using a convex lens - Learn CBSE | Lens, Focal length, Physics
![1. Define the focal length of a converging lens. Draw a ray diagram. Explain. 2. Define the focal length of a diverging lens. Draw a ray diagram. Explain. 3. Write the formula 1. Define the focal length of a converging lens. Draw a ray diagram. Explain. 2. Define the focal length of a diverging lens. Draw a ray diagram. Explain. 3. Write the formula](https://homework.study.com/cimages/multimages/16/5161198603918492840441.png)
1. Define the focal length of a converging lens. Draw a ray diagram. Explain. 2. Define the focal length of a diverging lens. Draw a ray diagram. Explain. 3. Write the formula
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Displacement Method for finding Focal Length of Convex Lens Class 12Optics @Kamaldheeriya Maths easy - YouTube
![To determine the focal length of a convex lens by obtaining an image of a distant object. – srishtypse2 To determine the focal length of a convex lens by obtaining an image of a distant object. – srishtypse2](https://srishtypse2.files.wordpress.com/2016/04/image003.png?w=640)
To determine the focal length of a convex lens by obtaining an image of a distant object. – srishtypse2
![Increasing back focal length of plano-convex lens made from SiO 2 with... | Download Scientific Diagram Increasing back focal length of plano-convex lens made from SiO 2 with... | Download Scientific Diagram](https://www.researchgate.net/publication/278019566/figure/fig3/AS:285247121571842@1445019621777/Increasing-back-focal-length-of-plano-convex-lens-made-from-SiO-2-with-decreasing-height.png)