Which material is used to reduce the reflections from glass surfaces?(a) Manganese Flouride(b) Magnesium oxide(c) Magnesium Flouride(d) Manganese oxideThis question was addressed to me in unit test.I would like to ask this question from Methods of Monitoring Foetal Heart Rate topic in portion Foetal Monitoring Instruments of Biomedical Instrumentation

Which material is used to reduce the reflections from glass surfaces?(

1.	Which material is used to reduce the reflections from glass surfaces?(a) Manganese Flouride(b) Magnesium oxide(c) Magnesium Flouride(d) Manganese oxideThis question was addressed to me in unit test.I would like to ask this question from Methods of Monitoring Foetal Heart Rate topic in portion Foetal Monitoring Instruments of Biomedical Instrumentation
Answer» The correct choice is (c) MAGNESIUM Flouride The EXPLANATION is: Reflections from glass SURFACES are reduced by coating these with magnesium fluoride, which is one-quarter wavelength in optical thickness. With this, SCATTERING effects are also GREATLY reduced.

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