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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 magnitude of any physical quantity

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  2. Calculate the number of astronomical units in one metre.

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  3. How many parsec are ther in one metre?

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  4. How many metre are there in a light year?

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  5. The density of air is 1.293 kg /m^3. Express it in cgs units.

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  6. Express an acceleration of 10ms^(-2) in km h^(-2)

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  7. If a mass of a proton is 1.67xx10^(-27)kg, how many protons will be pr...

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  8. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  9. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  10. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  11. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  12. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  13. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  14. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  15. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  16. What is one astronomical unit ? Express it in metres . Write its or...

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  17. What is the order of magnitude of second in a day ?

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  18. In a submarine fitted with a SONAR, the time between the genretaion of...

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  19. A radar signal is beamed towards a planet and its echo is recived 7 mi...

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  20. A rock under water is 1595 m deep. Find the time in which an ultrasoni...

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  21. The angle of elevation of the top of a hill is 30^(@) from a point on ...

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