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Author Question: Parallel rays of light that hit a concave mirror will come together: a. at the focal point. b. at ... (Read 53 times)

DelorasTo

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on: Jul 28, 2018
Parallel rays of light that hit a concave mirror will come together:
 a. at the focal point.
  b. at a point half way to the focal point.
  c. at infinity.
  d. at the center of curvature.

Question 2

What temperature increase is necessary to increase the power radiated from an object by a factor of 16?
 a. 8 K
  c. 100
  b. 2 K
  d. about 68


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nital

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

A

Answer to Question 2

C


DelorasTo

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Reply 2 on: Jul 28, 2018
Wow, this really help

AngeliqueG

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Reply 3 on: Yesterday
Excellent

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