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Find de-Broglie wavelength of wall assoc...

Find de-Broglie wavelength of wall associated with a particle of rest mass `9 xx 10^-31 Kg` and moving with a speed `1.5 xx 10^8 ms`.

Text Solution

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de-Broglie wavelength `= (lambda)=?`
`m=9 xx 10^-31 Kg`
`upsilon=1.5 xx 10^8 ms^-1`
`h=6.6 xx 10^-34 Js`
`lambda=h/P=h/(m upsilon)`
`lambda=(6.6 xx 10^-34)/(9.1 xx 10^-31 xx 1.5 xx 10^8)`
`=0.489 xx 10^-11`
`lambda=4.89 xx 10^-12 m`
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