## Question

###### An electron has a de Broglie wavelength of 75 nm.(a) Calculate its momentum.(b) Find its speed.(c) What amount of voltage (in eV) is required to acceleratefrom rest to the speed found in part (b)? [Hint: Think conservationof energy]

An electron has a de Broglie wavelength of 75 nm. (a) Calculate its momentum. (b) Find its speed. (c) What amount of voltage (in eV) is required to accelerate from rest to the speed found in part (b)? [Hint: Think conservation of energy]

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