The de-Broglie wavelength of an electron in 4th orbit is (where, r=radius of 1st orbit)

The de Broglie wavelength of an electron in the 3rd Bohr orbit is

The de Broglie wavelength of an electron in the 3rd Bohr orbit is

The de-Broglie wavelength of an electron in the first Bohr orbit is

The de-Broglie wavelength of an electron in the first Bohr orbit is

The de Broglie wavelength of an electron in the first Bohr orbit is

The de Broglie wavelength of an electron in the nth Bohr orbit is related to the radius R of the orbit as:

Which is the correct relation between de- Brogile wavelength of an electron in the n^(th) Bohr orbit and radius of the orbit R?