Metals are shiny because
A) they reflect 100% of incident light.
B) they are poor absorbers of light.
C) their electrons vibrate to the oscillations of any incident light.
D) none of the above
Answer: C
You might also like to view...
Single-Slit Diffraction: A beam of light of wavelength 610 nm passes through a slit that is 1.90 µm wide. At what the angle away from the centerline does the second dark fringe occur?
A. 11.4° B. 9.35° C. 12.2° D. 39.9° E. 18.7°
Suppose that the electric force between two objects is 2 N and that you then double the distance between the objects. The new force is
A) 1 N. B) 0.25 N. C) 0.5 N. D) 4 N. E) 8 N.
An organic light emitting diode (OLED) can be made from which of the following?
(a) pnp-junction (b) PMP-junction (c) MPM-junction (d) pn-junction
What rms current flows in a 60-mH inductor when 120-V rms ac at a frequency of 20 kHz is applied to it?
A) 8.0 mA B) 16 mA C) 24 mA D) 32 mA