Question

If an electron, a soccer ball, and a proton all have the same momentum, which has the shortest de Broglie wavelength?

1. soccer ball

2. electron

3. proton

4. all have the same wavelength

5. It depends on the energy of the electron.

What is de Broglie wavelength of a proton traveling with a speed of 3.25 × 106 m/s if its mass is mp = 1.67 × 10–27 kg

A. 1.22 * 10-13 m B. 0.763 x 106 m C. 3.41 x 10-9 m D. 3.59 10-12 m E. 1.29 x 105 m

Answer 1

Solution given that the electron, soccer ball and a phaton have the same momentum , de bregie wawellength ta P= Momentum - na constant so de la idea es tp a given Pe=Pg=Pp so le=ds=lp Answer :- all hole the same walelength given V=3.25x106m mp = 1.67 810 kg n= 6.626 X1034J-S -- h = 6.626 X 1054J-s .mpv 8.25 8106 XY-67 81827 = 1.22 X 10-13m (A) is the Answer