2. A certain ruby laser emits 1J pulses of light whose wavelength is 694nm. What is the minimum Cr3* ions in the ruby? 1. In a laser unit laser beam of wavelength 6328A® is emitted. How many photons are released per unit sec if the output power is 1mW

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A:

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A: Initial wave height, Ho =1 mwave period, T = 15 secondsdepth, d = 5 m

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A: The given information in the problem is shown in the following attached image:

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A: a cubic structure is given in the question.calculation of direction's -

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A: Step 1: Step 2: Step 3: Step 4:

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A:

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A: Steps are given under: