what are the terms AUand amu denote
Answers
Answer:
AU :
astronomical unit. noun. a unit of distance used in astronomy equal to the mean distance between the earth and the sun. 1 astronomical unit is equivalent to 1.495 × 10 11 metres or about 9.3 × 10 7 miles.
amu :
One atomic mass unit is defined as a mass unit which is exactly equal to one twelfth the mass of a carbon – 12 atom. One atomic mass unit is designated by the symbol amu.
AU - astronomical unit
AMU - atomic mass unit
The astronomical unit is denoted by AU. It is used for the measurement of length. 1 AU is defined as the average or approximate distance between the sun and earth. The value of 1 AU = 149597870700m. It was calculated with the help of the parallax method.
The atomic mass unit is denoted by AMU. it is also known as unified mass and also denoted as U. Its value is equal to of the mass of a single carbon-12 atom.