Electrons emitted when light strikes the surface of a metal is
a. photon emission
b. photon absorption
c. the photoelectric effect
d. a laser
e. an emission spectrum
C
You might also like to view...
Is an activation energy required to obtain the reaction in studied in this experiment?
High-mass stars have ________ lifetimes than low-mass stars.
A) much shorter B) slightly shorter C) much longer D) slightly longer
From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 486.1 nanometers (nm). The spectrum of a particular star shows the same hydrogen line appearing at a wavelength of 485.9 nm
What can we conclude? A) The star is moving toward us. B) The star is moving away from us. C) The star is getting hotter. D) The star is getting colder. E) The "star" actually is a planet.
____________________ clusters of galaxies contain closely spaced galaxies and often contain giant elliptical galaxies and a hot intergalactic medium
Fill in the blank(s) with correct word