if `lamda_(v'),lamda_(x)` and `lamda_(m)` represent the wavelengths of visible light X-rays and microwaves respectively then:

If lambda_v, lambda_x and lambda_m represents the wavelength of visible light X-ray and microwave respectively then :

lamda_v , lamda_x , lamda_m represent wave lengths of visible light, X-ray and microwaves then:

If lamda_(1) and lamda_(2) are the wavelengths of the first members of the Lyman and Paschen series respectively, then lamda_(1):lamda_(2) is