1 Light year is equal to 9.5 *10*12 kms.
what is Astronomical unit?
ans. It is average distance between sun and earth i.e. Radius of Earth's orbit.
what is Angstrom?
ans.This is the unit of length is used in atomic physics.
what is fermi?
ans.This is smallest unit of distance used in nuclear physics.
what is Atomic Mass Unit?
ans.This is practical unit of mass used in atomic and nuclear p...