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Worksheets11.M2.EM Wave Optics
Total questions: 14
Worksheet time: 16mins
According to Huygens principle of secondary wavelets, each particle at a wave front
is an electron
behaves as a photon
represents the direction of the motion of wave front
behaves as a new light source
The term coherence relates to ______.
the phase relationship between two waves
the polarization state of two waves
the diffraction of two waves
the amplitude of two waves
In a Young's double slit experiment, green light is
incident on the two slits. The interference pattern is
observed on a screen. Which one of the following
changes would cause the fringes to be more closely
spaced?
Reduce the slit separation distance
Use red light instead of green light
Use blue light instead of green light
Move the screen farther away from the slits
Monochromatic coherent light shines through a
pair of slits. If the distance between these slits is
decreased, which of the following statements is/are
true of the resulting interference pattern?
I. The distance between the maxima stays the
same
II. The distance between the maxima decreases
III. The distance between the minima increases
IV. The distance between the maxima increases
I only
I and III only
II and III only
III and IV only
Monochromatic coherent light shines through a
pair of slits. If the wavelength of the light is
decreased, which of the following statements is/are
true of the resulting interference pattern?
I. The distance between the maxima stays the
same
II. The distance between the maxima decreases
III. The distance between the minima stays the
same
IV. The distance between the minima decreases.
I and III only
I and IV only
II and III only
II and IV only
In a double-slit interference experiment you are
asked to use laser light of different wavelengths and
determine the separation between adjacent maxima.
You observe that this separation is greatest when you
illuminate the double slit with _____.
blue light
green light
yellow light
red light
What do we mean when we say that two light
rays striking a screen are in phase with each other?
When the electric field due to one is a maximum, the electric field due to the other is also a maximum, and this relation is maintained as time passes
They are traveling at the same speed
They have the same wavelength
They alternately reinforce and cancel each other
These two waves are _________.
monochromatic and in phase
monochromatic and out of phase
multichromatic and in phase
multichromatic and out of phase
These two waves will ________ interfere and result in a _________ amplitude.
constructively, increased
constructively, decreased
destructively, increased
destructively, decreased
In Young's double slit experiment, which diffraction grating would result in the largest spacing of bright spots?
d = 0.0125 m
d = 0.0100 m
d = 1 mm
d = 1 micron
In Young's double slit experiment, which laser would result in the closest together bright spots?
violet (410 nm)
blue (450 nm)
green (550 nm)
red (650 nm)
A student holds a laser and diffraction grating such that they are projecting a series of bright and dark fringes onto the whiteboard. As the student walks toward the board, the bright spots ______.
become closer together
moves farther apart
maintain the same spacing
Which would have the widest-spaced fringe pattern for light traveling through a diffraction grating?
large wavelength and a small slit spacing
small wavelength and small slit spacing
large wavelength and a large slit spacing
small wavelength and a large slit spacing
Bright spots on the interference pattern are visible because of:
Destructive Interference of Light
Constructive Interference of Light
Polarization of Light
Light is always bright
