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Author Question: A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of ... (Read 131 times)

corkyiscool3328

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on: Jul 28, 2018
A small underwater pool light is 1.26 m below the surface of a swimming pool. What is the radius of the circle of light on the surface, from which light emerges from the water? (nwater = 1.333).
 a. 0.77 m
  c. 1.13 m
  b. 0.57 m
  d. 1.43 m

Question 2

When a wool blanket is used to keep warm, what is the primary insulating material?
 a. wool
  b. air
  c. the trim around the edge of the blanket
  d. a thin layer of aluminum foil (usually not apparent) inside the blanket


pikon

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


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