Pick up the correct statement from the following:
(A) The apparent error on reversal is twice the actual error
(B) The correction may be made equal to half the observed discrepancy
(C) The good results may be obtained from a defective instrument by reversing and taking the
mean of two erroneous results
(D) All the above
(A) The apparent error on reversal is twice the actual error
(B) The correction may be made equal to half the observed discrepancy
(C) The good results may be obtained from a defective instrument by reversing and taking the
mean of two erroneous results
(D) All the above