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MCH 628
Sold: 0
Uploaded: 01.10.2014
Content: 41001110329980.rar 26,07 kB
Uploaded: 01.10.2014
Content: 41001110329980.rar 26,07 kB
Product description
628. The monoenergetic bunch of electrons highlights in the center of the screen of an electron beam tube a spot r=10-3 radius see. Using a ratio of neopredelennost, to find, in how many time uncertainty Δx: electron coordinate on the screen in the direction, perpendicular tube axes, there is less than a size r of spot. Length of the L electron beam tube to accept equal 0,50 m, and U tension accelerating an electron — equal 20 kV.
Additional information
The solution of a task 628is typed on the computer.
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