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Author Question: A man's face is 30 cm in front of a concave spherical shaving mirror. If the image is erect and 1.5 ... (Read 39 times)

Deast7027

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on: Jul 29, 2018
A man's face is 30 cm in front of a concave spherical shaving mirror. If the image is erect and 1.5 times as large as his face, what is the radius of curvature of the mirror?
 
  A) 40 cm
  B) 60 cm
  C) 100 cm
  D) 140 cm
  E) 180 cm

Question 2

A object is 12 cm in front of a concave spherical mirror, and the image is 3.0 cm in front of the mirror. What is the focal length of the mirror?
 
  A) 0.25 cm
  B) 15 cm
  C) 4.0 cm
  D) 2.4 cm
  E) 1.3 cm
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GCabra

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Deast7027

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Reply #2 on: Jul 29, 2018
Thank you!


GCabra

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Reply #3 on: Jul 29, 2018
Always glad to help...


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