A 28-mm-thick layer of water (n = 1.33) floats on a 35-mm-thick layer of carbon tetrachloride (n = 1.46) in a tank. A coin lies at the bottom of the tank. At what depth below the top water surface do you perceive the coin? (Hint: Use the small-angle approximation sin 0 tan 0 0.) hs ept cept Number Units hcept the tolerance is +/-5% oblem
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