Accidental error can be minimised by

Instrumental error can be minimised by

Instrumental error can be minimised by

Assertion (A): Backlash error can be minimised by turning the screw in one direction only when fine adjustment is done. Reason (R ): Backlash error is caused due to wear and tear or loose- fittings in screws.

The accuracy of measurement also lies in the way the results is expressed. The number of digits to which a value is to be expressed is one digit more than number of digits after after an operation is carried out on the given values. The error can be minimised by many trials and using the correct methods are instruments. The number of significant figures can reduce in

The accuracy of measurement also lies in the way the results is expressed. The number of digits to which a value is to be expressed is one digit more than number of digits after after an operation is carried out on the given values. The error can be minimised by many trials and using the correct methods are instruments. The number of significant figures can reduce in

Gross error can be eliminated by :