Calculate the de Broglie wavelength asso...

Calculate the de Broglie wavelength associated with an `alpha`-particle having an energy of `7.7xx10^(-13)J` and a mass of `6.6xx10^(-24)g.(h=6.6xx10^(-34)J-s)`.

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The correct Answer is:

`6.56xx10^(-13)cm`

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