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The magnitude of any physical quantity...

The magnitude of any physical quantity

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Numerical value of the magnitude of a physical quantity is

Statement-1: The numerical value (n)of a physical quantity is inversely proportional to size of unit (u) being used to measure it. Statement-2:The magnitude of physical quantity does not change by changing the units.

Statement-I: The product of the numerical value and unit of physical quantity remains same in every system of unit. Statement-II: magnitude of a physical quantity remains same in every system of units.

The measurement of a physical quantity is basically the process of ____________.

Is J a physical quantity ?

Define error in a measurement of any physical quantity.

Define errors in a measurement of any physical quantity.

If the dimensions of a physical quantity are given by M^(x) L^(y) T^(z) , then physical quantity may be

SL ARORA-Units and Measurements-Exercise
  1. The radius of the sun is 696,0000 m. Express it in scientific notation...

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  2. Express 0.00000538 in powers of 10.

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  3. The magnitude of any physical quantity

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  4. Explain the principle of homogeneity of dimensions. What are its uses?...

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  5. Which of the following has the same dimension as Planck's constant : T...

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  6. What are the dimensions of rate of flow?

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  7. What is the differecne between the measurements 4.0 cm and 4.000 cm ?

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  8. What significance is attached to the final zeros in a number without a...

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  9. How many significant figures are 750

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  10. How many significant figures 0.00320

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  11. If / = x , then relative error in / would be how many times the relati...

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  12. A research worker takes 100 observations in an experiment . If he repe...

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  13. Give two examples of non dimensional veriables.

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  14. Name any three dimensional constants.

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  15. Name any two non dimensional constant.

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  16. Write the dimensional formula of wavelength and frequency of a wave

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  17. If x = at + bt^(2) where x is in meter (m) and t is in hour (hr) t...

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  18. If x = at + bt^(2) where x is in meter (m) and t is in hour (hr) t...

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  19. The number of significant figures in 0.007 is

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  20. State the number of significant figures in 2.67xx10^-24 kg

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