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Author Question: A compound microscope has an objective with a focal length of 3.00 mm and an eyepiece of focal ... (Read 156 times)

go.lag

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on: Jul 29, 2018
A compound microscope has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. It is adjusted for minimum eyestrain for persons with a near point of 25 cm.
 
  If the two lenses are separated by 40.0 cm, what is the total overall magnification?
  A) 550 B) 2200 C) 28 D) 56 E) 470

Question 2

An electron has a speed of 0.643c. Through what potential difference would the electron need to be accelerated (starting from rest) in order to reach this speed? (c = 3.00  108 m/s, e = 1.60  10-19 C, mel = 9.11  10-31 kg)
 
  A) 160 kV B) 200 kV C) 130 kV D) 180 kV
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amit

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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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go.lag

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Reply 2 on: Jul 29, 2018
Wow, this really help

sultansheikh

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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