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Author Question: Dispersion occurs when: a. a material changes some frequencies more than others. b. a material ... (Read 36 times)

acc299

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on: Jul 28, 2018
Dispersion occurs when:
 a. a material changes some frequencies more than others.
  b. a material slows down some wavelengths more than others.
  c. some materials bend light more than other materials.
  d. light has different speeds in different materials.

Question 2

At 20C an aluminum ring has an inner diameter of 5.000 cm, and a brass rod has a diameter of 5.020 cm. Keeping the brass rod at 20C, which of the following temperatures of the ring will allow the ring to just slip over the brass rod? (aAl = 2.4  10-5 /C, abrass = 1.9  10-5/C )
 a. 111C
  c. 228C
  b. 187C
  d. 437C


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chjcharjto14

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

B

Answer to Question 2

B


acc299

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

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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