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What is the purpose of closing one eye during sight measuring?

Answer and explanation

Correct answer: दृष्टि को समतल करके माप अधिक स्थिर बनाना

Sight measuring works best when the viewpoint remains consistent. Closing one eye removes the second-eye view and reduces binocular parallax, so the object and measuring pencil are seen from one fixed line of sight. Holding the pencil at the same arm’s length then makes comparisons more repeatable. It changes neither colour nor pencil size, making option B correct.

Related tags

Sight MeasuringOne EyeMeasurementProportionObject ObservationDrawing BasicsArt EducationClass 9 Mcq

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