1.

6. The electron in a hydrogen atom makes transi-tion from M shell to L, the ratio of magnitudesof initial to final acceleration of the electron is(a) 9:4(b) 81 : 16(c) 4:9(d) 16:81

Answer»

second shell to 3 she'll after return back to 3 to 2.so the ans is 9:4



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