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The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the proton and electron in a hydrogen atom in its ground state. It is named after Niels Bohr, due to its role in the Bohr model of an atom. Its value is 5.2917721067×10^−11 m.
In relation to the base unit of [length] => (meters), 1 Decimeters (dm) is equal to 0.1 meters, while 1 Bohr Radius (Bohr) = 5.29177E-11 meters.| 400 Decimeters | to common length units |
|---|---|
| 400 dm | = 40 meters (m) |
| 400 dm | = 0.04 kilometers (km) |
| 400 dm | = 4000 centimeters (cm) |
| 400 dm | = 131.23359580052 feet (ft) |
| 400 dm | = 1574.8031496063 inches (in) |
| 400 dm | = 43.744531933508 yards (yd) |
| 400 dm | = 0.024854847689493 miles (mi) |
| 400 dm | = 4.227882887644E-15 light years (ly) |
| 400 dm | = 151181.12140865 pixels (PX) |
| 400 dm | = 2.5E+36 planck length (pl) |