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Subtract 0.2 J from 7.26 and express the...

Subtract 0.2 J from 7.26 and express the result with correct number of significant figures

A

7.1

B

7.06

C

7

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
D
`11.05+11.05=22.10` and not 22.1 becouse the result of addition must contain the least number of digit (of adding figure) after decimal. Here it is 2(digits).
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MEASUREMENTS-PRACTICE EXERCISE (EXERCISE - 1)
  1. In which of the following numerical values, all zeros are significant?

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  2. What is the number of significant figure in (3.20 + 4.80) ""xx10^(5)?

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  3. Subtract 0.2 J from 7.26 and express the result with correct number of...

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  4. The length, breadth and thickness of a sheet are 4.234m, 1.005 m and 2...

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  5. Multiply 107.88 by 0.610 and express the result with correct number of...

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  6. The radius of a thin wire is 0.16mm. The area of cross section taking ...

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  7. Which of the following measurement is most precise?

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  8. The mean length of an object is 5cm. Which of the following measureme...

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  9. If error in measuring diameter of a circle is 4 %, the error in the ra...

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  10. The heat generated in a circuit is dependent upon the resistance, cur...

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  11. A force F is applied on a square plate of side L. If the percentage er...

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  12. A cuboid has volume V=lxx2lxx3l, where l is the length of one side. If...

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  13. If the error in the measurement of momentum of a particle is (+ 100%),...

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  14. The radius of a ball is (5.2pm0.2) cm. The percentage error in the vol...

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

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

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  17. A capillary tube is attached horizontally to a constant pressure head ...

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  18. The length of a strip measured with a meter rod is 10.0cm. Its width m...

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  19. The length of a cylinder is measured with a meter rod having least cou...

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  20. A physical quantity is given by X=M^(a)L^(b)T^(c). The percentage erro...

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