I’m trying to figure out the velocity of light in a material that is called “mystery a” that I need the answer of to figure out what the index of refraction is so I can solve my problem and I don’t have any information except the line splits when it goes through the medium and the part that refracts is 71.73% intensity and the part that reflects is 28.27 and I was wondering how I can get the c/v= index of refraction

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Explanation:

the answer is d

explanation:

dan realized that his goal of going to an ivy league school if only he works hard which means basically this   to become completely aware of (something) as a fact; understand without a doubt to make (something desired or anticipated) occur to give real, definite or physical form to a plan, dream, or goal to earn (money or a profit) from a deal

c.the charges if the proton and electron and gravity