What are the values of wavelengths of GaAs laser used in LBM?$

1.	What are the values of wavelengths of GaAs laser used in LBM?$
A.	100 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 200 nm
B.	200 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 400 nm
C.	600 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 700 nm
D.	800 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 900 nm
Answer» E.

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