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Author Question: An object 2 cm high is placed 10 cm in front of a mirror. What type of mirror and what radius of ... (Read 90 times)

ts19998

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on: Jul 28, 2018
An object 2 cm high is placed 10 cm in front of a mirror. What type of mirror and what radius of curvature is needed for an image that is inverted and 4 cm tall?
 a. Concave, R = 40 cm
  c. Convex, R = 13 cm
  b. Convex, R = 6.7 cm
  d. Concave, R = 20 cm

Question 2

The Sun is a slightly variable star. What if the surface temperature of the Sun were to increase from 6000 K to 6100 K, what would be the increase in total power radiated assuming no other changes such as radius or emissivity?
 a. 1.6
  c. 3.4
  b. 6.8
  d. 14


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Meganchabluk

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

C

Answer to Question 2

B


ts19998

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Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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