GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
4
|
|
|
5
|
|
|
7
|
|
|
10
|
Detailed explanation-1: -The SI rests on a foundation of seven (7) defining constants: the cesium hyperfine splitting frequency, the speed of light in vacuum, the Planck constant, the elementary charge (i.e. the charge on a proton), the Boltzmann constant, the Avogadro constant, and the luminous efficacy of a specified monochromatic source.
Detailed explanation-2: -In other words, the reference quantities in the present SI are the definitions of the base units: the second, meter, kilogram, ampere, kelvin, mole, and candela.
Detailed explanation-3: -The SI is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1.
Detailed explanation-4: -There are seven base units measurements namely meter, kilogram, second, ampere, kelvin, mole, and candela. The most common among these are kilograms, seconds, and meters.