Ray tracing for a convex lens
October 12th, 2009
This tutorial shows how to draw the ray diagrams for a convex lens for the three important cases: (i) an object placed further than 2x focal length from the lens, (ii) an object placed between 1x and 2x focal length from the lens and (iii) an object placed less than 1x focal length from the lens.
You will see how in each case, the image is (i) real and inverted, (ii) out of focus and (iii) virtual, upright and magnified.
Try to construct the diagrams yourself, remembering the three construction lines from the top of the object parallel to the optical axis, through the centre of the lens and through the focal point.
Categories: Intermediate 2 Physics, Standard Grade Physics | Tags: convex lens, intermediate 2, optics, Physics, Standard Grade | Comments Off
