COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
The velocity of light in a vacuum or air is approximately...
a. 3 x 1010 meters per second
b. 3 x 108 meters per second
c. 186,000 meters per second
d. 186,000 miles per minute
b. 3 x 108 meters per second
The number of light waves that pass a point in one second is called its...
a. frequency
b. wavelength
c. period
d. quantum
a. frequency
As the frequency of light increases...
a. its energy increases
b. its wavelength increases
c. Planck's constant increases
d. its energy decreases
a. its energy increases
, Planck's constant...
a. is a measure of the speed of light in frequency units
b. is a measure of wavelength
c. relates the energy of a photon of light to its frequency
d. varies with the medium that the light is passing through
c. relates the energy of a photon of light to its frequency
The part of the spectrophotometer that selects the wavelength of light that
reaches the sample is...
a. the Nernst glower
b. the monochromator
c. the photocell
d. the thermocouple
b. the monochromator
If a spectrophotometer has a photocell detector and a xenon lamp source it is a...
a. mass spectrophotometer
b. an infrared spectrophotometer
c. a microwave instrument
d. a UV/visible spectrophotometer
d. a UV/visible spectrophotometer
The type of spectrometry that measures the energy that is absorbed by molecules
that causes bond vibration is...
a. UV/visible
b. infrared