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Author Question: An electron's de Broglie wavelength is 2.4 m. What is its speed? A) 3.0 102 m/s B) 2.5 105 m/s ... (Read 88 times)

jessicacav

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on: Jul 29, 2018
An electron's de Broglie wavelength is 2.4 m. What is its speed?
 
  A) 3.0  102 m/s
  B) 2.5  105 m/s
  C) 1.7  103 m/s
  D) 8.3  106 m/s

Question 2

You have a choice between two lenses of focal lengths fa and fb, where fb = 2fa, to use as the objective lens in building a compound microscope. If the magnification you obtain using lens a is Ma, what will be the magnification when using lens b?
 
  A) Mb = 2 Ma
  B) Mb = 4 Ma
  C) Mb = 8 Ma
  D) Mb = Ma/4
  E) Mb = Ma/2
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joshbk44

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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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jessicacav

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Reply 2 on: Jul 29, 2018
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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