Electromagnetic Radiation Unit Test Questions
with Complete Solutions
Astronomers study galaxy motion by looking at the frequency of light coming from the stars
inside the galaxies. Which model of light would be most useful in studying this phenomenon?
the wave model of light
The wave and particle models are both important for understanding light. Which statement
describes a difference between the way waves and particles act? Two waves can cancel
each other out, while two colliding particles cannot.
Light undergoes refraction when it moves from one medium to another. Light entering a
medium at any angle of incidence besides 0 degrees will change direction. Water waves do
something similar when they change from one medium to another, and a rolling ball will do the
same if it starts down a steeper slope. Because of this, both the wave and particle models are
appropriate for understanding refraction.
Which statement from the article represents the reasoning in the passage? Water waves
do something similar when they change from one medium to another, and a rolling ball will do
the same if it starts down a steeper slope.
A scientist decreases the distance between the two slits in a double-slit experiment and keeps
every other aspect the same. What will be true about the new interference pattern seen on the
screen compared to the original interference pattern? The spacing between the bright
fringes will increase.
Which observation in the double-slit experiment supports the argument that electromagnetic
radiation travels in waves? The interference pattern seen in the double-slit experiment
with electromagnetic radiation is similar to the interference pattern water waves make when
they pass through two narrow slits.
with Complete Solutions
Astronomers study galaxy motion by looking at the frequency of light coming from the stars
inside the galaxies. Which model of light would be most useful in studying this phenomenon?
the wave model of light
The wave and particle models are both important for understanding light. Which statement
describes a difference between the way waves and particles act? Two waves can cancel
each other out, while two colliding particles cannot.
Light undergoes refraction when it moves from one medium to another. Light entering a
medium at any angle of incidence besides 0 degrees will change direction. Water waves do
something similar when they change from one medium to another, and a rolling ball will do the
same if it starts down a steeper slope. Because of this, both the wave and particle models are
appropriate for understanding refraction.
Which statement from the article represents the reasoning in the passage? Water waves
do something similar when they change from one medium to another, and a rolling ball will do
the same if it starts down a steeper slope.
A scientist decreases the distance between the two slits in a double-slit experiment and keeps
every other aspect the same. What will be true about the new interference pattern seen on the
screen compared to the original interference pattern? The spacing between the bright
fringes will increase.
Which observation in the double-slit experiment supports the argument that electromagnetic
radiation travels in waves? The interference pattern seen in the double-slit experiment
with electromagnetic radiation is similar to the interference pattern water waves make when
they pass through two narrow slits.
