1.

A dust particle of mass 2 mg is carried with a velocity of 100 cm/s. What is the de Broglie wavelength associated with the dust particle? (h = 6.64 xx 10^(-34) J-s)

Answer»

`3.32 XX 10^(-31)` m
`6.64 xx 10^(-30)` m
`3.32 xx 10^(-34)`m
`3.32 xx 10^(-28)` m

Solution :` lambda = H/(mv) = (6.64 xx 10^(-34))/(2xx 10^(-3) xx 10^(-3)xx 100 xx 10^(-2))`


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