Matter Waves: A proton and an electron are both accelerated to the same final kinetic energy. If ?p is the de Broglie wavelength of the proton and ?e is the de Broglie wavelength of the electron, then
A. ?p > ?e.
B. ?p = ?e.
C. ?p < ?e.
Answer: C
You might also like to view...
Which of these was NOT a difficulty initially met in explaining the photoelectric effect?
a. The transferred kinetic energy seemed to work too quickly. b. If light is a wave, its amplitude should have governed the energy imparted to electrons to cause their emission, and frequency should have had the effects it had. c. Increased intensity of the light did not increase the maximum kinetic energy of emitted electrons. d. Increased frequency of the light increased the maximum kinetic energy of the electrons. e. Electrons could not escape from solid materials.
Which has the greatest effect on the flow of fluid through a pipe? That is, if you made a 10% change in each of the quantities below, which would cause the greatest change in the flow rate?
A) the fluid viscosity B) the length of the pipe C) the pressure difference D) the radius of the pipe E) the fluid density
The human eye can just detect green light of wavelength 500 nm if it arrives at the retina at the rate of 2 × 10-18 W. How many photons arrive each second? (c = 3.0 × 108 m/s, h = 6.626 × 10-34 J ? s)
What will be an ideal response?
The baryon having which of the following quark contents is electrically neutral?
A. dds B. bbc C. uud D. ucs