Zero error of an instrument introduces...

Zero error of an instrument introduces

Systematic error

Random error

Least count error

Personal error

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The diagram given below is an instrument which is used to eliminate the effect of gravity What is the use of this instrument in this experiment?

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The accuracy in a measurement may depend on several factors like (I) Personal erroes (II) Imperfection in technique/procedure (III) Instrumental errors, Random error (IV) Resolution of measuring instrument Which the following is true ?

In column - I names of measuring instruments are mentioned and column - II possible type of errors are specified - Match the columns appropriately. {:(,"Column - I",,"Column - II"),((A),"Vernier callipers",(P),"Back lash error"),((B),"Screw gauge",(Q),"Positive zer error"),((C ),"Travelling microscope",(R ),"Negative zero error"),((D),"Meter scale",(S),"No error"):}

What do you mean by zero error of a screw gauge ? How is it accounted for ?

AAKASH INSTITUTE ENGLISH-UNITS AND MEASUREMENTS-ASSIGNMENT SECTION A Objective (One option is correct )

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Zero error of an instrument introduces
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The best method to reduce random error is
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The number of significant zeros present in the measured value 0.020040...
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Round off the value 2.845 to three significant figures
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What are the dimensions of the change in velocity ?
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