R and Q. The lengths RQ, RQ are such that RQ/RQ= p. the refractive index. RQ, RQ are two other rods pivoted at R, Q and R, such that RQ = RQ)RQ = RQ. The various rods may be thin stripsof brass or tin, and the pivots consistof loosely fitting rivets fastening themtogether. If R be put in any… … N Fig. 39. sin <£ sin QRR .. sin QRR: or RQ is the refracted ray. V 35. Experiments on the Law of Refraction. EXPERIMENT (10). To verify the law of refraction. Fix a sheet of paper to a drawing-board as in Experiment (5).Take a rectangular slab of glass, such as is sometimes usedfor a…
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