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How rational system is helpful?...

How rational system is helpful?

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A system of unit is which all the physical quantities, which are qualitatively similar, are expressed in one unit is called a rational system. In SI, all types of energy is expressed in joule. Therefore, SI is said to be a rational system of units.
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MBD PUBLICATION-PHYSICAL WORLD AND MEASUREMENT-QUESTION BANK
  1. Which Physical quantities have the same dimension ML^(2)T^(-2)?

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  2. What is principle of homogeneity?

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  3. How rational system is helpful?

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  4. Given below are certain quantities : Momentum, stress, pressure, force...

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  5. What significant figures signify?

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  6. Differentiate between permissible and experimental errors?

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  7. Name the branch of science which deals with study of energy.

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  9. What we name something which possess weight and occupies space?

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  10. The mechanical device which converts heat energy into mechanical energ...

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  11. Which branch of physics deals with study of motion.

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  12. What we call branch of physics which deals with geometrical formation ...

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  13. The great scientist who discovered radioactivity is named?

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  14. Who discovered laws of gravitation?

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  15. By whom optical phenomenon was first explained?

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  16. What subject Robert Hooke dealt?

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  17. Which scientist was responsible for the discovery of radium?

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  18. Which of the following is a fundamental quantity velocity, acceleratio...

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  19. Which among below is a derived quantity, distance, mass, time, velocit...

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  20. The SI unit for the current is

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