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A student measured the length of a wire ...

A student measured the length of a wire and wrote it as 2.50 can which instrument did he/she use to measure it?

A

a screw gauge having 50 division in the circular scale and pitch as 1 mm.

B

a meter scale

C

a vernier caliper where the 10 division in vernier matches with a division in main scale.

D

a screw gauge having 100 division in the circular scale and pitch as 1 mm.

Text Solution

Verified by Experts

The correct Answer is:
B
To get accuracy.
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PREMIERS PUBLISHERS-NATURE OF PHYSICAL WORLD AND MEASUREMENT-OTHER IMPORTANT QUESTIONS & ANSWERS (I. Multiple Choice Questions.)
  1. Which one of the following is not the unit of energy ?

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  2. The respective number of significant figures for the number 13.013, 0....

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  3. A student measured the length of a wire and wrote it as 2.50 can which...

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  4. If the error in the measurement of radius of a sphere is 3% then the e...

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  5. The diameter of the steel ball is measured using a vernier caliper whi...

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  6. If A=2.331cm and C=2.1cm, then A+C=……..cm.

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  7. Match the following units given in the column I with dimesnions in the...

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  8. The least count of stop watch is 0.5s. The time of 40 oscillation of t...

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  9. Assertion : SI system of units is a coherent system of units. Reason...

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

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  11. Gross error can be eliminated by :

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  12. The unit of permittivity of free space, epsilon0 is

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  13. High precision instruments are used to eliminate …………….. Error.

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  14. Assertion : The length of a cylinder is 23.8 cm. In this measurement t...

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  15. Round off to the number 12.653 upto 3 digits:

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  16. If f=x^(2), then the relative error in f is :

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  17. The length and breadth of a rectangle are 6.01 m and 12 m. Taking the ...

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  18. Which of the following digits are significant?

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  19. Column I gives three physical quantities. Select the appropriate units...

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  20. The dimensional formula for relative density is :

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