1.

Relation between de-Broglie wavelength and absolute temp.is given by …….

Answer»

<P>`lambda PROP T`
`lambda prop(1)/(T)`
`lambda prop(1)/(sqrt(T))`
`lambda prop T_(2)`

Solution :de-Broglie wavelength `lambda=(h)/(p)`
but `p=sqrt(2mE)` and `E=(3)/(2)kT`
`therefore p=sqrt(2mxx(3)/(2)kT)`
`therefore p=sqrt(3mKT)`
Other TERMS are constant,
` therefore lambda =(h)/(sqrt(3mkT))`
`therefore lambda prop (1)/sqrt(T)`


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