Question

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Answer 1

Answer:

electron has the highest de Broglie wavelength and alpha particles has the shortest de Broglie wavelength.

Answer 2

Answer:

De Broglie wavelength of particle of mass m in terms of kinetic energy (E

k

) is λ=

2mE

k

h

∝

m

1

for the same kinetic energy.

(i) Out of given particles, the mass of alpha particle is maximum, so de Broglie wavelength associated with alpha particle is the shortest.

(ii) As mass of electron is least, so electron has largest de-Broglie wavelength.