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Author Question: An image is 4.0 mm in front of a convex lens with focal length of magnitude 5.0 mm. Where is the ... (Read 101 times)

Engineer

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on: Jul 29, 2018
An image is 4.0 mm in front of a convex lens with focal length of magnitude 5.0 mm. Where is the object for this image?
 
  A) 2.2 mm in front of the lens
  B) 2.2 mm behind the lens
  C) 9.0 mm behind the lens
  D) 20 mm in front of the lens

Question 2

What is the photon energy of red light having a wavelength of 6.40  102 nm? (c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 1.13  10-19 J
  B) 1.31  10-19 J
  C) 3.11  10-19 J
  D) 1.94  10-19 J
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gstein359

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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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Engineer

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Reply 2 on: Jul 29, 2018
Excellent

T4T

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Reply 3 on: Yesterday
Wow, this really help

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