The ratio of radius of second orbit of hydrogen to the radius of its first orbit is :

The ratio of radius of first orbit in hydrogen to the radius of first orbit in deuterium will be :

If the radius of the second orbit of hydrogen atom is a Å then radius of the first orbit of Li^(2+) ion (in Å ) will be

If the radius of the second orbit of hydrogen atom is a Å then radius of the first orbit of Li^(2+) ion (in Å ) will be

If the radius of the second orbit in hydrogen atom is R then radius of the third orbit is ........

The radius of second Bohr’s orbit of Hydrogen atom is:

The radius of second Bohr’s orbit of Hydrogen atom is:

Radius of first orbit of hydrogen is 0.53 Å . The radius in fourth orbit is:

Assertion The radius of second orbit of hydrogen atom is 2.1Å Reason Radius of nth orbit of hydrogen atom r_(n)propn^(2)

Assertion The radius of second orbit of hydrogen atom is 2.1Å Reason Radius of nth orbit of hydrogen atom r_(n)propn^(2)