The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000. m/s is A)3.96 × 10 ⁻¹⁰m. B)3.96 × 10 ⁻⁷m. C)2.52 × 10 ⁶m. D)2.52 × 10 ⁹m. E) 10 ¹⁰ m.

Question

The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000. m/s is A)3.96 × 10 ⁻¹⁰m. B)3.96 × 10 ⁻⁷m. C)2.52 × 10 ⁶m. D)2.52 × 10 ⁹m. E)> 10 ¹⁰ m.

Quizplus · Accepted Answer

The de Broglie wavelength is calculated using the formula λ = h/p, where h is Planck's constant (6.626 × 10^-34 m^2 kg/s) and p is the momentum (mass × velocity). For a proton (mass ≈ 1.67 × 10^-27 kg) moving at 1000 m/s, the wavelength is approximately 3.96 × 10^-10 m.

The De Broglie Equation Predicts That the Wavelength (In M)