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(a) The mass of a particle moving with v...

(a) The mass of a particle moving with velocity `5xx 10^(6) ms^(-1)` has de-Broglie wave length associated with it to be 0.135 nm. Calculate its mass.
(b) In which region of the electromagnetic spectrum does this wave length lie?

Text Solution

Verified by Experts

(a) Here ,
`v=5xx10^(6)m//s`
`lambda=0.135nm=0.135xx10^(-9)m`
So we know that
`lambda=(h)/(mv)`
or, `m=(h)/(lambda v)`
`=(6.63xx10^(-34))/(0.135xx10^(-19)mxx5xx10xx^(6))`
`=9.1xx10^(-31)Kg`
(b) It lies in ultravoilet region.
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