Wavelengths around ___________ have the highest bactericidal efficienc

1.	Wavelengths around ___________ have the highest bactericidal efficiency.
A.	150 ‚Äö√†√∂‚àö√±
B.	3900 ‚Äö√†√∂‚àö√±
C.	2650 ‚Äö√†√∂‚àö√±
D.	1500 ‚Äö√†√∂‚àö√±
Answer» D. 1500 ‚Äö√†√∂‚àö√±

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