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One requires 11eV of energy to dissociat...

One requires `11eV` of energy to dissociate a carbon monoxide molecule into carbon and oxygen atoms. The minimum frequency of the appropriate electromagnetic radiation to achieve the dissociation lies in.

A

Visible region

B

infrared region

C

Ultaviolet region

D

microwaves region .

Text Solution

Verified by Experts

The correct Answer is:
A
Given , energy ` E= 11 eV = 11xx 1.6 xx10^(-19 ) J`
also `E=hv`
where `h=` Plank.s cosntant
` = 6.62 xx 10^(-34) m^2 Kg //s`
`v= (E )/(h ) = ( 11 xx1.6xx 10^(-19) )/( 6.62 xx 10^(-34))Hz`
`=2.66 xx 10^(15) Hz `
this frequency lies in the ultraviolet region of electromagnetic radiation .
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