Physics
Measusrement
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#65 Result of $3.2+2.45$ with correct significant figures is:
A) $5.7$
B) $5.65$
C) $5.6$
D) $5.70$
#66 In multiplication, the result should have significant figures equal to:
A) largest among factors
B) smallest among factors
C) sum of factors
D) difference of factors
#67 Precision refers to:
A) closeness to true value
B) repeatability of measurement
C) instrument resolution
D) systematic error
#68 Accuracy refers to:
A) repeatability
B) closeness to true value
C) random error
D) zero error
#69 Random errors are reduced by:
A) taking mean of repeated readings
B) changing instrument
C) adding least count
D) using rough estimate
#70 Systematic error example is:
A) zero error
B) personal error
C) parallax error (random)
D) fluctuation error
#71 Least count of a measuring instrument is:
A) maximum reading
B) smallest quantity measurable
C) zero error
D) systematic error
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