A narrow slit has width

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

5.0\,\mu\text{m}

. Quantum diffraction becomes noticeable when a particle’s de Broglie wavelength is at least

1.0\%

of the slit width. Determine the largest mass a particle moving at

1.0\,\text{m}\,\text{s}^{-1}

can have and still produce noticeable diffraction at the slit. Express your answer in kilograms to two significant figures.