Physics MCQs

Page No. 34

ML-1 T-2 is the dimension of_______________?


aForce

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bPressure

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cMomentum

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dEnergy

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View Answer Pressure

The dimension of force is__________________?


aMLT-1

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bMLT-2

✓


cML-1T

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d ML-1T-2

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View Answer MLT-2

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


aAccurate

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bPrecise

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cAccurate and precise

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d None of these

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View Answer Precise

Number of significant figures in 0.0173 is_________________?


a3

✓


b 4

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c5

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d2

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View Answer 3

A digit zero in a measurement__________________?


aMay be significant may not significant

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bAlways significant

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cAlways insignificant sign

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dSignificant only if left to a significant figure

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All methods explained in A, B and C


aAll accurately known and all doubtful digits

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bOnly accurately known digits

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cOnly doubtful digits

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dAll accurately known digits and the first doubtful digit

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Random errors can be reduced by_______________?


a Taking zero correction

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bComparing the instrument with another more accurate one

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cTaking mean of several measurements

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d All methods explained in A, B and C

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The uncertainty in a measurement may occur due to_______________?


aLimitation of an instrument

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bNatural variation of the object to be measured

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cInadequate technique

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dAll given in A, B and C

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The error in measurement may occur due to_________________?


a The inexperience of a person

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bThe faulty apprentice

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c Inappropriate method

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dDue to all reasons in A, B and C

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Prefix deca represents_______________?


a10 Raised to power 1

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b10 Raised to power 2

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c10 Raised to power 3

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d 10 Raised to power -1

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View Answer 10 Raised to power 1

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