On which factor the accuracy of deflection type and null type instruments depends?

Q.  The accuracy of the deflection type instruments and of the null type instruments depends on
- Published on 04 Nov 15

a. Linearity, calibration of spring
b. Calibration of spring, linearity and calibration of weights
c. Linearity and calibration of spring, calibration of weights
d. Both depends on calibration of weight

ANSWER: Linearity and calibration of spring, calibration of weights

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