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What is the utilization wavelength limit for quartz?(a) 300 nm(b) 350 nm(c) 180 nm(d) 210 nmThis question was posed to me in an internship interview.This interesting question is from Methods of Monitoring Foetal Heart Rate in division Foetal Monitoring Instruments of Biomedical Instrumentation

Answer»

Correct choice is (d) 210 NM

Easy explanation: Normally, the absorbance of any material should be less than 0.2 at the wavelength of use. Below 300 nm, QUARTZ or FUSED silica is utilized. The limit for quartz is 210 nm.



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