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What meant by one candela? And Which bas...

What meant by one candela? And Which base quantity is measured by this unit? (or) Define one candela (S.I standard for Luminous intensity)

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One candela is the luminous intensity in a given direction, of a source that emits monochromatic radiation of frequency `5.4xx10^(14)` Hz and that has a radiant intensity of `1/683` watt/ steradian in that direction.
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SURA PUBLICATION-NATURE OF PHYSICAL WORLD AND MEASUREMENT-ADDITIONAL QUESTIONS
  1. What is the SI unit of temperature and define it? What is one kelvin i...

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  2. What is the SI unit of amount of substance? (or) What is one mole in...

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  3. What meant by one candela? And Which base quantity is measured by this...

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  4. What is meant by the triple point of water?

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  5. What is meant by Parallax?

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  6. What is 1 Light year?

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  7. Define a Astronomical Unit.

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  8. What is parsec? (or) Define one parsec (parallactic second)

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  9. Why is the cylinder used in defining kilogram made up of platimum-irid...

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  10. Write the largest and the smallest practical unit of mass and time res...

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  11. Define mass

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  12. Write the masses of tiny as well as huge matter?

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  13. Write the methods to determine the masses of objects?

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  14. What is clock? Write the principle and its types.

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  15. Which units are used to measure laerge distance i.e. distance of plane...

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  16. Is it possible to have length and velocity both as fundamental quantit...

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  17. Which of these unit is lasrgest: AU, light year and parsec. Express th...

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  18. The radius of gold nucleus is 41.3 Fermi. Express its volume in m^(3)

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  19. Describe the relation of Physics with mathematics

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  20. What is the difference between Accuracy and Precision?

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