Deck 21: The Dual Nature of Light and Matter

Question 1

Light is considered a(an)

A) electromagnetic wave.
B) chemical wave.
C) nuclear wave.
D) kinetic wave.

Answer 1

electromagnetic wave.

Question 2

Light acts as a wave or particle. Its particle name is _________.

A) neutron
B) electron
C) photon
D) quark

Answer 2

photon

Question 3

The electron in the smallest orbit is in the _________.

A) 1^st excited state
B) Bohr state
C) 2^nd excited state
D) ground state

Answer 3

ground state

Question 4

The brightness of a light is determined by an inverse square law with distance. This means essentially that

A) as distance increases, brightness increases at a greater rate.
B) as distance increases, brightness decreases at a greater rate.
C) as distance increases, brightness increases at the same rate.
D) as distance increases, brightness decreases at the same rate.

Question 5

___________ indicates the number of protons an atom has.

Question 6

_____________ occurs when the electron goes from the higher state to the lower state.

Question 7

Brightness of an object is proportional to the inverse of distance squared.

Question 8

The identification of star types is done by examining their absorption spectra.