Bottles of perfume sometimes have thick glass (n = 1.5) walls ...

[D2AR0N]

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

Question 2

Bottles of perfume sometimes have thick glass (n = 1.5) walls which give the impression the volume is larger than it is. Assume a cylindrical bottle has an inner radius of 1.0 cm and an outer radius of 2.0 cm. How thick (in cm) would the wall appear if you could see a mark on the inside surface?
 a. 0.80
  b. 0.51
  c. 0.72
  d. 80
  e. 12

[mjenn52]

Answer to Question 1

D

Answer to Question 2

A

[D2AR0N]

Excellent

[Bigfoot1984]

TYSM