Constant error can be caused due to A. faulty construction of instrument. B. wrong setting of instrument. C. lack of concentration of observer. D. wrong procedure of handling the instrument.
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Final Answer : A) Faulty Construction of Instrument
=> Constant Error (Systematic Error) :
In this error, Reading from an instrument consistently deviate from its True Values.
Thus is similar to what we call : Zero Error :
=> We have, seen in Vernier Calipers or Screw gauge that there cones excess reading (zero error) due to faulty construction of instrument.
Like : Stuck of some materials between jaws of screw Gauge.
However, second option ( wrong Setting of an instrument) means wrong positioning / locating the instrument which is different from its construction and it does not comes in Constant error.
Other C/ D are obviously Falsewhich too doesn't comes on category of Constant Error.
=> Constant Error (Systematic Error) :
In this error, Reading from an instrument consistently deviate from its True Values.
Thus is similar to what we call : Zero Error :
=> We have, seen in Vernier Calipers or Screw gauge that there cones excess reading (zero error) due to faulty construction of instrument.
Like : Stuck of some materials between jaws of screw Gauge.
However, second option ( wrong Setting of an instrument) means wrong positioning / locating the instrument which is different from its construction and it does not comes in Constant error.
Other C/ D are obviously Falsewhich too doesn't comes on category of Constant Error.
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Answer:
(A) faulty construction of instrument
Explanation:
- faulty construction of instrument
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