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.
To find the focal length of a concave lens using a convex lens - Learn CBSE | Lens, Focal length, Physics
Ray Diagram for the Focal Length of Convex Lens - YouTube
To Find the Focal Length of a Convex Mirror, Using a Convex Lens - Learn CBSE | Convex mirror, Concave mirrors, Spherical mirror
How do you find the focal length of a concave lens using a convex lens? | Homework.Study.com
Determination of Focal Length Of Concave Lens Using Convex Lens - BYJU'S
Determination of the Focal Length of a Convex Lens