If lambda1 and lambda2 denote the wavelengths of de Broglie waves for electrons in the first and second Bohr orbits in a hydrogen atom,then lambda1/ lambda2 is equal to

If lamda_1 and lamda_2 denote the wavelength of de Broglie waves for electrons in the first and second Bohr orbits in a hydrogen atom, the (lamda_1)/(lamda_2) is equal to

If lambda_(1) and lambda_(2) denote the wavelength of de-broglie waves for electron in Bohr's first and second orbits in the hydrogen atom, then lambda_(1)//lambda_(2) will be

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

the number of de broglie wavelength contained in the second bohr orbit of hydrogen atom is

The de-Broglie's wavelength of an electron in first orbit of Bohr's hydrogen is equal to

The de Broglie's wavelength of electron present in first Bohr orbit of 'H' atom is :

The de-Broglie wavelength lambda_(n) of the electron in the n^(th) orbit of hydrogen atom is

If lambda_1 and lambda_2 , are the wavelengths of the third member of Lyman and first member of the Paschen series respectively, then the value of lambda_1:lambda_2 is:

If lambda_1, lambda_2 and lambda_3 are the wavelength of the waves giving resonance to the fundamental, first and second overtone modes respectively in a string fixed at both ends. The ratio of the wavelengths lambda_1:lambda_2:lambda_3 is