Bottles of Perfume Sometimes Have Thick Glass (N = 1

question 3

Multiple Choice

Bottles of perfume sometimes have thick glass (n = 1.5) walls which give the impression the volume is larger than it really is. Assume a cylindrical bottle with an inner radius of 1.0 cm and an outer radius of 2.0 cm. What percentage of the apparent volume is the real volume?

• A) 95%
• B) 60%
• C) 80%
• D) 64%
• E) 75%

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