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The diameter of a wire is measured to be...

The diameter of a wire is measured to be 0.0250 `xx` `10^(-4)` m. The number of significant figures in the measurement is

A

five

B

four

C

three

D

nine

Text Solution

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The correct Answer is:
C
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DC PANDEY-UNITS, DIMENSIONS & ERROR ANALYSIS -Chapter exercises (taking it together)
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  2. The diameter of a wire is measured to be 0.0250 xx 10^(-4) m. The numb...

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  3. Dimensional formula for electromotive force is same as that for

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  4. The number of significant figures in 0.06900 is

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  5. The sum of the numbers 436.32, 227.2 and 0.301 in appropriate signific...

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  6. The dimensional formula for magnetic flux is

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  7. A force F is given by F = at+ bt^(2) , where t is time. The dimensions...

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  8. If the dimension of a physical quantity are given by M^a L^b T^c, then...

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  9. Three measurements are made as 18.425 cm, 7.21 cm and 5.0 cm. The addi...

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  10. What are the units of K (1)/(4pi in(0)) ?

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  11. The radius of a circle is 21.2 m. Its area according to the rule of si...

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  13. The position of the particle moving along Y-axis is given as y=At^(2)-...

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  14. The length, breadth and thickness of a block are given by l=12 cm , b=...

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  15. Out of following four dimensional quantities, which one quantity is to...

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  16. The random error in the arithmetic mean of 100 observations is x, then...

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  17. A physical quantity Q is calculated according to the expression Q=(A...

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  18. With usual notation, the following equation, said to give the distance...

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  19. The velocity v of a particle at time t is given by v=at+b/(t+c), where...

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  20. if the randon error in the arithmetic mean of 50 observations is alpha...

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