1.

The_optimum_filter_bandwidth_is_typically_in_the_range_________________

A. 0.1 to 0.3 nm
B. 0.5 to 3 nm
C. 0.1 to 0.3 μm
D. 0.5 to 3 μm
Answer» C. 0.1 to 0.3 ‚âà√≠¬¨‚à´m


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