Question

s. What is Sl unit of length? Why is this unit defined in
terms of wavelength of light radiation?​

Answer 1

Answer:

The SI unit for length is meters(m), for mass is kilograms(kg), for volume is cubic meter(m^3), for density kilogram per cubic meter(kg/m^3), for time is seconds(s), and for temperature is kelvins(K). Wavelength is, as the name suggests, a length. The SI length unit is the meter, defined as “the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second.”[ 1] Footnotes.

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Answer 2

Answer:

meter

Explanation:

it is defined in terms of wavelength of light radiation for standardisation only.