Do a drawing of a convex lens showing the optic axis and position of focal point

Question

Do a drawing of a convex lens showing the optic axis and position of focal points. Draw a small penguin, or other flightless bird, at 3 x the focal length from the lens (to the left of the lens) and on the optic axis. Using the thin lens equation locate the position of the image of your small penguin, or other flightless bird, and draw it. Label on the drawing the focal lengths, the image distance, and the object distance. Be sure to indicate if the values are positive or negative.

Do a drawing of a concave lens showing the optic axis and position of focal points. Draw a small penguin, or other flightless bird, at 3 x the focal length from the lens (to the left of the lens) and on the optic axis. Using the thin lens equation locate the position of the image of your small penguin, or other flightless bird, and draw it. Label on the drawing the focal lengths, the image distance, and the object distance. Be sure to indicate if the values are positive or negative.

Explanation / Answer

here the lens formula

1 / v + 1 / v = 1 / f

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