" The De Broglie wave present in the fifth Bohr orbit is - "

The de Broglie wave present in fifth Bohr orbit is:

If the de Broglie wave length of the fourth Bohr's orbit of hydrogen atom is 4 Å, the circumference of the orbit is:

If the de Broglie wave length of the fourth Bohr's orbit of hydrogen atom is 4 Å, the circumference of the orbit is:

The de-Broglie's wavelength in 1^(st) Bohr's 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 first Bohr orbit is equal to