Lenses - Lenses Procedure Put light source far form...

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Lenses
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Procedure: Put light source far form converging lens. Approximate the focal length, the distance from the center of the lens to the screen. Repeat for multiple lenses and thin lenses. Description: converging lens and diverging lens. Theory: Two types of lenses are converging and diverging lenses. A converging lens is thicker in the middle than at the edge, and can have either two convex surfaces or one convex and once concave surface with the convex surface being more sharply curved. A diverging lens I thicker at the edge and can have two concave surfaces or one concave and one convex surface with the concave surface more sharply curved. The focal point is where the light rays parallel to the axis of the lens coverges at a point. The focal length is the distance from the focal point ot the lens. Light rays diverge on the other side of a diverging lens, on a point behind the lens. The lens equation is 1/s + 1/i= 1/f.
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