1.

Which of the following statement (s) are wrong.A. one mol of photons having ebnergy 400 KJ/mol will always breaks 4 male bonds of a molecule `A^(2)` where A-A bond dissocitaion energy id is 100 KJ/mol.B. Two bubls are emitting light having wavelenght ` 2000Å` ans `3000Å` respectively . If the bubls A and B ar 40 watt and 300 watt respectively then the ratio of number of photons emitted by A and B per dsy is `1//2`.C. When an electron make transitional from higher to lower orbit, photons(s) is /are emitted.D. Ratio of time period of electron in H-atom is `1^(st)` and `3^(rd)` level is `(9)/(1).

Answer» Correct Answer - A::B::D
(A) One mole photons will break one bond
(b) `(n_(A))/(n_(B))=(40xx2000)/(30xx3000)=(8)/(9)`
(D) Time period `n^(3)`
`(T_(1))/(T_(3))=(1)/(9)`


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