Question

(a) A 633-nm He-Ne laser is incident on a slab of an unknown material. Within the slab, the laser’s wavelength is 329nm. Determine whether the substance is most likely zircon or diamond. (b) Suppose a layer of water were placed on top of the slab. Determine the ratio of thickness of the slab versus the water if both materials are to contain the same number of waves.

Answer 1

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