FSC Physics MCQs Part 1 Physics Part 2 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

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Which one is not a branch of physical sciences?
A. chemistry B. astronomy
C. geology D. biology
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[explanation]D[/explanation]
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1024 can be written in scientific notation as
A. 1.024×103 B. 2 Raised to power 10
C. 0.000976 D. 1/0.00097
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[explanation]A[/explanation]
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The uncertainty in a measurement may occur due to
A. limitation of an instrument B. natural variation of the object to be measured
C. inadequate of technique D. all given in a , b and c
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[explanation]D[/explanation]
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[question]
A digit zero in a measurement
A. may be significant may not significant B. always significant
C. always insignificantsig D. significant only if left to a significant figure
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[explanation]A[/explanation]
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Smaller the least count of the instrument more is the measurement
A. accurate B. precise
C. accurate and precise D. none of these
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[explanation]B[/explanation]
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Dimensional analysis is helpful for
A. deriving a possible formula B. checking the homogeneity of a physical equation
C. verification of laws D. only a and b are correct
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[explanation]D[/explanation]
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[question]
Three students measured length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is correct record?
A. only (i) B. only (ii)
C. only (iii) D. both (i) and (ii)
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[explanation]C[/explanation]
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[question]
Absolute uncertainty in a measurement depends upon
A. magnitude of the measurement B. least count of the instrument
C. percentage error in the measurement D. all of a, b and c
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[explanation]B[/explanation]
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[question]
Total uncertainty, in result obtained from the subtraction of two measurement, is equal to
A. sum of their absolute uncertainties B. difference of their absolute uncertainties
C. product of their absolute uncertainties D. division of their absolute uncertainties
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[explanation]A[/explanation]
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[question]
Unit of G is?
A. Nm2Kg2 B. Nm2Kg
C. Nm2Kg-2 D. none
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[explanation]B[/explanation]
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