For a particle that has a velocity that is 70 % of the speed of light and weighs 206.8 times the mass of an electron, the wavelength of this particle is mathematically given as
W= 739.47
Generally, the equation for the 70 % of the speed of light is mathematically given as
70% of 3x10^8 = 2.1x10^8 m/s
Therefore
206.8*9.11x10^-31 = 1.88x10^-28 kg
In conclusion, The wavelength equation isTThe
wavelength= plancks constant / (mass*velocity)
Where
Plancks constant = 6.62x10^-34 m^2 kg/s
W=6.62x10^-34 / (1.88x10^-28/2.1x10^8)
W= 739.47
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