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  4. Choose the wrong statement for zero error and zero correction :

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Q. Choose the wrong statement for zero error and zero correction :

NTA AbhyasNTA Abhyas 2020Physical World, Units and Measurements

Solution:

if the zero line of the vernier scale is not coinciding with the main scale the zero error exists. Knowing the zero error necessary correction can be made to find correct measurement. Such a correction is called zero correction.
In positive zero error zero of vernier scale lies to right of the zero of the main scale.