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When 10 observation are taken the random...

When 10 observation are taken the random error is x when 100 observation are taken the random error becomes

A

`x//10`

B

`x^2`

C

`10x`

D

`sqrt(x)`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-UNITS AND MEASUREMENT-EXERCISE - II
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  2. If length and breadth of a plane are (40 + 0.2) and (30 +- 0.1) cm, th...

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  3. When 10 observation are taken the random error is x when 100 observati...

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  4. The diameter of a wire as measured by a screw gauge was found to be 1....

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  5. The percengate error in the second reading is

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  6. The error in the measurement of the length of a simple pendulum is 0.1...

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  7. The length and breadth of a rectangular are 25 cm and 10 cm respective...

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  8. If the length of a cylinder is measured to be 4.28 cm with an error of...

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  9. The side of a cube, as measured with a vernier calipers of least count...

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  10. If L = (20 pm 0.01) m and B = (10 pm 0.02)m then L/B is

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  11. The volume of a sphere is 1.76 cm^3. The volume of 25 such spheres wil...

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  12. A body of mass m = 3.513 kg is moving along the x-axis with a speed of...

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  13. If x = a/b, then the maximum percentage error in the measurement of 'x...

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  14. Two full turns of the circular scale of a screw gauge cover a distance...

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  15. In vernier callipers, m divisions of main scale with (m + 1) divisions...

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  16. A vernier callipers has 1 mm marks on the main scale. It has 20 equal ...

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  17. A screw gauge gives , the following reading when used to measure the d...

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  18. The vernier scale of an instrument has 50 divisions which coincide wit...

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  19. Three measurements of the time for 20 oscillations of a pendulum give ...

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  20. The measured mass and volume of a body are 53.63 g and 5.8 cm^3 respec...

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