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In a Bohr's model of atom when an electron jumps from n= 1 to n= 3 , how much energy will be emitted or absorbed:
(1) 2.15 x10-11 erg
(2) 0.1911x 10-10erg
(3) 2.389x 10-12erg
(4) 0.239x 10-10erg
Ans: 0.1911x 10-10erg
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