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30/09/2020 4:09 pm
Topic starter
The de Broglie wavelength associated with a ball of mass 1 kg having kinetic energy 0.5 J is:
(a) 6.626 x 10-34 m
(b) 13.20 x 10-34 m
(c) 10.38 x 10-21 m
(d) 6.626 x 10-34 Å
1 Answer
1
30/09/2020 4:11 pm
(a) 6.626 x 10-34 m
Explanation:
λ = h/mv = h/√2mE
= 6.6 x 10-34 /√(2 x 1 x 0.5)
= 6.626 x 10-34 m