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The total plane angle subtended by a cir...

The total plane angle subtended by a circle at its centre is

A

`pi` rad

B

`2pi` rad

C

`(2pi)/3` rad

D

`pi/2` rad

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-UNITS AND MEASUREMENTS-ASSIGNMENT (SECTION - A)
  1. Which of the following is a unit that of force?

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  2. The value of 60^@ in radian is

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  3. The total plane angle subtended by a circle at its centre is

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  4. A far off planet is estimated to be at a distance D from the earth. If...

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  5. One unified atomic mass unit represents a mass of magnitude

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  6. If the average life of a person is taken as 100 s the age of the unive...

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  7. Which of the following is the most precise measurement?

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  8. The number of significant figures in a pure number 410 is

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  9. Thickness of a pencil measured by using a screw gauge (least count.001...

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  10. The percentage error in the measurement of the voltage V is 3% and in...

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  11. The relative error in the measurement of the side of a cube is 0.027 T...

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  12. Zero error of an instrument introduces

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  13. A packet contains silver powder of mass 20.23 g pm 0.01 g Some of the ...

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  14. The addition of three masses 1.6 g, 7.32 g and 4.238 g. addressed upto...

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  15. The area of a sheet of length 10.2 cm and width 6.8 cm addressed upto ...

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  16. The radius of a sphere is (2.6 pm 0.1) cm The percentage error u iis v...

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  17. The uncertain digit in the measurement of a length reported as 41.68 c...

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  18. We can reduce random errors by

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  19. The number of significant figures in the measured value 0.0204 is

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  20. The number of significant figures in the measured value 26000 is

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