what is ANGSTROM (a unit in physics) and astronomical unit
What is its value?? explain very briefly
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The angstrom or {ångstrom (Å)} is an internationally recognizedunit of length equal to 1 × 10-10 meters (m) or 0.1 nanometer (nm). The unit is widely used inphysics, chemistry and biology to express the sizes of atoms, molecules, and theelectromagnetic wavelengths.
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A unit of length equal to one hundred- millionth of a centimetre, used mainly to express wavelengths and interatomic distances.
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