What would be system pressure of Si-MBE system in order to achieve 5 – McqOptions

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1.	What would be system pressure of Si-MBE system in order to achieve 5 × 107 cm mean free path(L) of atoms ?
A.	10-7 torr
B.	10-8 torr
C.	10-9 torr
D.	10-10 torr
Answer» E.

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