Question

Define
(1.) Standard meter (1m)
(2.) Standard kilogram (1 kg)
(3.) 1 second​

Answer 1

Answer:

1. 1 metre length is the standard value for measuting any object which is followed and accepted .

Explanation:

1. The kilogram, symbol kg, is the SI unit of mass. It is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015×10−34 when expressed in the unit J⋅s, which is equal to kg⋅m2⋅s−1, where the metre and the second are defined in terms of c and ΔνCs.
2. 1 second is equal to 1000 milliseconds

Answer 2

Answer:

It is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015×10−34 when expressed in the unit J⋅s, which is equal to kg⋅m2⋅s−1, where the metre and the second are defined in terms of c and ΔνCs. 1 second is equal to 1000 milliseconds.

Explanation:

plzz mark as a brainlist answer.