General Aim of Focal Length of a Convex Lens Using General Law
Determination of the focal length and power of lens.
Focal Length of a Convex Lens Experiment | Method
General method.
Focal Length of a Convex Lens Using General Law .. Learning Objectives
Understand the image formation for a convex lens.
Understanding the difference between both the focal length and power of a lens and how to determine them.
Focal Length of a Convex Lens Using General Law.. Theoretical Background
Rays coming from very far away are practically parallel. If such rays are also parallel to the main axis of the lens, the image forms at f, the focal point of the lens will be real and inverted.
The general method implies that, the relation between the object distance p, the image distance q, and the focal length f is given by the thin lens formula as:
And the power of this lens will be obtained from:
Focal Length of a Convex Lens Experiment | Principle of Work
Focal Length of a Convex Lens Using General Law experiment depends on recording the position at which a well-defined and clear image for the object is formed. Measuring the distance q for different values for p (lens - object distance).
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