Final answer:
To convert millimeters to centimeters, divide the value by 10. In this case, 1,250 millimeters is equal to 125 centimeters.
Step-by-step explanation:
To convert millimeters to centimeters, divide the value by 10. In this case, the given wavelength of 1,250 millimeters can be converted to centimeters by dividing 1,250 by 10, which equals 125 centimeters.
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