Mechanical Engineering > GATE 2023 > Metrology
An optical flat is used to measure the height difference between a reference slip gauge A and a slip gauge B. Upon viewing via the optical flat using a monochromatic light of wavelength 0.5 µm, 12 fringes were observed over a length of 15 mm of gauge B. If the gauges are placed 45 mm apart, the height difference of the gauges is ______________ µm.
(Answer in integer)

Correct : 3

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Related Topics

optical flat measurement height difference gauges GATE Mechanical Engineering 2023 gauge height difference fringe visibility optical flat mechanical engineering gate wavelength 0.5 µm distance between gauges 45 mm fringes observed 12 over 15 mm

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