68 The wavenumber of a radiation whose frequency is 7 5 10 s

Last updated: 7/2/2023

68 The wavenumber of a radiation whose frequency is 7 5 10 s 1 is 1 1 25 m 1 2 0 25 m 1 3 2 5 m 1 4 25 m 1 69 The species which has the maximum charge to mass ratio is 1 Electron 3 Neutron 2 Proton 4 a particle