For this, you will need the following link: file:///var/folders/94/p86qvk7s16sc5

Question

For this, you will need the following link: file:///var/folders/94/p86qvk7s16sc53svm_s29d180000gn/T/phet-geometric-optics/geometric-optics_en.html

1. What type of lens is used in this simulation? (2 points)

2. Select the correct statement below. (2 points)

3. Using the ruler, measure the focal length of the lens (marked with an x on the axis). The focal length is (1 point)

A. converging lens B. diverging lens No Rays Marginal rays Principal rays Many rays 2nd hange Object Show Guides Virtual Image 0.8 1.5 1.3 curvature radius(m) diameter(m) Screen refractive index Point 40 60 80 100 120 140 160 180cm The "No Rays" button is selected, and the pencil is moved above the principal axis of the lens such that its eraser is positioned on the principal axis. Also the pencil is more than twice the focal distance from the lens. Make sure that "curvature radius" is set to 0.8 m, the "refractive index" is 1.5 and the "diameter" of the lens is 1.3 m. Also select the "Virtual Image" and "Ruler" button and make sure a ruler shows up in your window.

Explanation / Answer

(1).A.Converging lens.

(2).D.Converging lenses are shaped such that a beam of parallel light rays passing through the lens will be brought together in one single point.

(3).A. 0.8m.

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