java physics

     Left click near the tip of the object ( shown in red color ) and drag to change the object size and object distance. Left clicking near the focus and dragging changes the focal length. Left clicking near the midpoint of the lens/ mirror and dragging shifts the lens.

     You can also use the cursor keys to change the position and height of the object. Up and down cursor keys change the height of the object and the left and right cursor keys change the obect position. With control key pressed down up and down cursor keys change the focal length and the left and right cursor keys shift the lens/mirror.

   Double click to switch between beam of rays and rays of known behaviour.

   All measurements are in some arbitrary system.

Surendranath. B.

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