Compared to the entire electromagnetic spectrum, visible light is ________.
A. the least energetic
B. the most energetic
C. a small fraction of the possible wavelengths of light
D. the most valuable to astronomers
E. the fastest moving
Answer: C
You might also like to view...
Photoelectric Effect: A photocathode whose work function is 2.9 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm. What is the range of the wavelength band in this white light illumination for which photoelectrons are not produced? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 430 nm to 700 nm B. 400 nm to 480 nm C. 430 nm to 480 nm D. 400 nm to 430 nm E. 480 nm to 700 nm
One experimental observation that demonstrates Einstein's ideas on the relativity of time, is
A) electromagnetic waves from the early stages of the development of the universe have slower rates of vibration. B) muons "live" longer when moving rapidly than they do when they are at rest. C) a laser beam emitted from an orbiting satellite is observed from Earth. D) rapidly-rotating neutron stars spin more slowly than they would if they weren't moving rapidly away from us. E) the recent discovery of very fast-moving particles known as tachyons.
List the three types of binary stars
What will be an ideal response?
When water evaporates from the ocean and rises into the atmosphere, the energy transformation is
A) radiant energy ? gravitational energy. B) gravitational energy ? electromagnetic energy. C) kinetic energy ? thermal energy. D) chemical energy ? gravitational energy. E) chemical energy ? thermal energy.