Which change will not affect the kinetic energy of the most energetic electrons emitted in the photoelectric effect?
a. changing the frequency of the light
b. changing the metal the light is hitting
c. changing the brightness of the light
d. All of the above will affect the electron's kinetic energy.
C
You might also like to view...
Which of the following is TRUE?
A. We see distant galaxies as they were billions or even tens of billions of years ago. B. We measure a redshift for roughly half of the galaxies that we observe, and for the others we measure a blueshift. C. It is possible for galaxies that are very distant to actually move through space at a speed several times the speed of light. D. A redshift occurs when a photon loses energy and slows down as it moves through space. E. The center of the universe is located at a point about 200 Mpc from us in the center of a cluster of galaxies.
If an AA alloy’s numerical designation is followed by the letter “F”, this indicates that the alloy is as _________.
Fill in the blank(s) with the appropriate word(s).
A charge q = 2 ?C is placed at the origin in a region where there is already a uniform electric field = (100 N/C) . Calculate the flux of the net electric field through a Gaussian sphere of radius R = 10 cm centered at the origin
A) 5.52 × 105 Nm2/C B) 1.13 × 105 Nm2/C C) 2.26 × 105 Nm2/C D) 0.565 × 105 Nm2/C E) 0
When a damping force is applied to a simple harmonic oscillator which has angular frequency w0 in the absence of damping, the new angular frequency w is such that
a. w < w0. b. w = w0. c. w > w0. d. wT < w0T0. e. wT > w0T0.