The Atomic Spectra - Question Answers - Physics 12th The Atomic Spectra - Question Answers - Physics 12th Question Answers from Chapter # 18 "The Atomic Spectra" Practical Centre for class XII, 12th, Second Year Practical Centre Physics Second Year Question Answers from Chapter The Atomic Spectra The Atomic Spectra Chapter List | Theory | Question Answers | MCQs | Online MCQs