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Which of the following is the most preci...

Which of the following is the most precise device for measuring length ? (a) a vernier calliper with 20 divisions on the sliding scale, coinciding with 19 main scale divisions (b) a screw gauge of pitch 1mm and 100 divisions on the circular scale (c ) an optical instrument that can measure length to within a wavelength of light.

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Which of the following is the most precise device for measuring length - An optical instrument, a vernier calliper, or a screw gauge?

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MAXIMUM PUBLICATION-UNITS AND MEASUREMENTS-EXERCISE
  1. in a particular experiment Ramu use the relation F=AB+(P+Q)Y to calcul...

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  2. in a particular experiment Ramu use the relation F=AB+(P+Q)Y to calcul...

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  3. Which of the following is the most precise device for measuring length...

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  4. is it possible to increase the accuracy of screw gauge by increasing t...

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  5. in an experiment with a common balance the mass of a ring found to be ...

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  6. in an experiment with a common balance the mass of a ring found to be ...

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  7. In the experiment with common balance the mass of a body is found to 2...

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  8. while discussing the period of a pendulum one of the student argued th...

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  9. while discussing the period of a pendulum one of the student argued th...

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  10. in an experiment with a common balance the mass of a ring found to be ...

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  11. in an experiment with a common balance the mass of a ring found to be ...

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  12. in an experiment with a common balance the mass of a ring found to be ...

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  13. The volume of a cube of side 1 cm is equal to …….m^(3).

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  14. Fill in the blanks: the surface area of a solid cylinder of radius 2.0...

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  15. Fill in the blanks: A vehicles moving with speed of 18kmh^(-1) covers ...

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  16. Fill in blanks: the relative density of lead is 11.3. its density is ...

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  17. Fill in the blanks by suitable conversion of units: 1kgm^2s^(-2) = ......

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  18. Fill in the blanks by suitable conversion of units: 1m=ly

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  19. fill in the blanks by suitable conversion of units: 3.0ms^(-2) = ........

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  20. fill in the blanks by suitable conversion of units: G=6.67×10^(-11)Nm^...

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