1$$\mathop {\text{A}}\limits^{\text{o}} $$ (Angstrom ) is equal to
A. 10-6 m
B. 10-7 m
C. 10-8 cm
D. 10-9 cm
Answer: Option D
Solution(By Examveda Team)
Angstrom is the unit of length, equal to 10-9 cm, 10-10 Meter, or 0.1 nanometers. In words, that is one ten-billionth of a meter, a hundred millionth of a centimeter.Its symbol is $$\mathop {\text{A}}\limits^{\text{o}} $$, a letter of the Swedish alphabet. It is named after the Swedish physicist Anders Jonas Angstrom.
It is often used in science and technology to express the size of atoms, molecules, microscopic biological structures, lengths of chemical bonds, arrangement of atoms in crystals, etc.
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this answer is wrong