Physics for Scientists and Engineers (3rd Edition)

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Resonance Experiment 10. Geometrical Optics This laboratory is to demonstrate how the very simple principles of reflection and refraction lead to sophisticated optical instruments. Equipment Ray box, white light source, 1 mirror, 1 protractor, 1 glass prism Optical bench 3 converging lenses, 1diverging lens 2 lens holders Ground glass screen with holder,. Method We begin with a ray box that has a slotted mask in front of a light bulb to produce a set of narrow beams (or "rays") of light. The rays lie along a plane surface (a sheet of paper). Your measurements will consist of pencil marks on the piece of paper, recording the direction of these rays before and after they strike a mirror or glass prism. Then you will progress to the study of lenses. Lenses are in essence refracting objects with precisely machined curved surfaces. Finally, you will construct simple two-lens optical instruments, a microscope and telescope. Procedure 1. Light Wave Reflection Use the ray box, a mirror, and protractor to verify that θ incident = θ reflected . Do this for at least three
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10. Optics - Resonance Experiment 10. Geometrical Optics...

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