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Author Question: A concave mirror having a focal length of magnitude 5.0 cm forms an image 4.0 cm behind the mirror. ... (Read 112 times)

KWilfred

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A concave mirror having a focal length of magnitude 5.0 cm forms an image 4.0 cm behind the mirror. Where is the object for this image?
 
  A) 2.2 cm in front of the mirror
  B) 2.2 cm behind the mirror
  C) 9.0 cm in front of the mirror
  D) 1.0 cm behind the mirror
  E) 20 cm behind the mirror

Question 2

Tan's face is 20 cm in front of a concave shaving mirror. If he observes his image to be twice as big and upright, what is the focal length of the mirror?
 
  A) 10 cm
  B) -40 cm
  C) -50 cm
  D) 40 cm
  E) 50 cm


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succesfull

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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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KWilfred

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


smrtceo

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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