Physics MCQs

Page No. 34

ML-1 T-2 is the dimension of_______________?


aForce


bPressure


cMomentum


dEnergy


View Answer Pressure

The dimension of force is__________________?


aMLT-1


bMLT-2


cML-1T


d ML-1T-2


View Answer MLT-2

Smaller the least count of the instrument more is the measurement________________?


aAccurate


bPrecise


cAccurate and precise


d None of these


View Answer Precise

Number of significant figures in 0.0173 is_________________?


a3


b 4


c5


d2


View Answer 3

A digit zero in a measurement__________________?


aMay be significant may not significant


bAlways significant


cAlways insignificant sign


dSignificant only if left to a significant figure



All methods explained in A, B and C


aAll accurately known and all doubtful digits


bOnly accurately known digits


cOnly doubtful digits


dAll accurately known digits and the first doubtful digit



Random errors can be reduced by_______________?


a Taking zero correction


bComparing the instrument with another more accurate one


cTaking mean of several measurements


d All methods explained in A, B and C



The uncertainty in a measurement may occur due to_______________?


aLimitation of an instrument


bNatural variation of the object to be measured


cInadequate technique


dAll given in A, B and C



The error in measurement may occur due to_________________?


a The inexperience of a person


bThe faulty apprentice


c Inappropriate method


dDue to all reasons in A, B and C



Prefix deca represents_______________?


a10 Raised to power 1


b10 Raised to power 2


c10 Raised to power 3


d 10 Raised to power -1


View Answer 10 Raised to power 1

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