1.

Which of the following statement (s)are wrong.

Answer»

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.
Two bubls areemitting light having wavelenght ` 2000Å` ans `3000Å` respectively . If the bubls A and
B ar 40 watt and 300 watt respectively then the ratio ofnumber of photons EMITTED by A and B per dsy
is `1//2`.
When an electronmake transitionalfrom higher to lower orbit, photons(s) is /are emitted.
Ratio of time periodof electron in H-atom is `1^(st)` and `3^(rd)` level is `(9)/(1).

Solution :(A) One mole photons will breakone 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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