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11th Class Physics Quiz Question.

http://interviewquestionsanswers.org/quiz/11th-Class http://interviewquestionsanswers.org/qu … ss-Physics

Question:
The error which can be reduced by comparing the instruments with another which is known to be more accurate is

Option A):
systematic error
Option B):
none of them
Option C):
both of them
Option D):
random error

Correct Answer is Option A):
systematic error