Identify the correct statement(s) :....

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Identify the correct statement(s) :
(A) Wavelength associated with a \( 1 \mathrm{~kg} \) ball
P
moving with the velocity \( 100 \mathrm{~m} / \mathrm{s} \) can't be calculated.
(B) Wave nature of the running train is difficult to observe because wavelength is extremely small.
(C) Wavelength associated with the electron can be calculated using the formulae \( E=\frac{h}{\lambda} \)
(D) An electron with initial kinetic energy of \( 100 \mathrm{eV} \) is acceleration through a potential difference of \( 50 \mathrm{~V} \). Now the de-Broglie wavelength of electron becomes \( 1 \AA \).


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