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Calculate the wavelength associated with...

Calculate the wavelength associated with cricket ball ofmass of 150 g travelling with a velocity of`25ms^(-1)`

Text Solution

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According the de-Braglie equation
`lambda= ( h)/(mv)`
`h=` Planck's constant `=6.626 xx 10^(-34)Js`
`m=150 g= ( 150)/( 1000) kg`
`v= 25 ms^(-1)`
Putting in equation , we get
`lambda= ( 6.26 xx 10^(-34) Js)/( ((150)/( 1000) kg) xx 25ms^(-1))`
`lambda = 1.766 xx 10^(-34) ( J = kgm^(2) s^(-2))`
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