A proton in a linear accelerator has a de Broglie wavelength of

1a.) A proton in a linear accelerator has a de Broglie wavelength of 120pm.What is the speed of the proton?1b.) An electron has an uncertainty in its position of 617pm .What is the uncertainty in its velocity?2.)The two-slit diffraction experiment shows how light can be treated as particles and how light waves carry the statistical information for the experiment. If we were to use a beam of electrons instead of light in the experiment how would the results differ?The two-slit diffraction experiment shows how light can be treated as particles and how light waves carry the statistical information for the experiment. If we were to use a beam of electrons instead of light in the experiment how would the results differ?A. There would be no change.B. There would be a diffraction pattern similar to but different from that using light.C. There would be no diffraction pattern.D. There would only be a single spot from the electron beam.3.)If electrons were used in the two-slit experiment instead of light what change would need to be made to the slit spacing in order to see a diffraction pattern?If electrons were used in the two-slit experiment instead of light what change would need to be made to the slit spacing in order to see a diffraction pattern?A. No change.B. The slit spacing has to increase.C. Electrons cannot diffract.D. The slit spacing has to decrease.