An optical microscope can resolve a step of aluminum width 300 nm. A slip band was observed in a simple cubic crystal (a = 3 Å). How many (minimum) dislocations must have slipped out of the crystal?

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1. An optical microscope can resolve a step of aluminum width
300 nm. A slip band was observed in a simple cubic crystal (a
= 3 Å). How many (minimum) dislocations must have slipped
out of the crystal?
Transcribed Image Text:1. An optical microscope can resolve a step of aluminum width 300 nm. A slip band was observed in a simple cubic crystal (a = 3 Å). How many (minimum) dislocations must have slipped out of the crystal?
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