Question 1

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm.
  
-Which fringe is 300 nm closer to one slit than to the other?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E A

Question 2

Light with a wavelength of 600.0 nm is incident on a single slit of width 6.5 $\mu$m.The resulting diffraction pattern is observed on a nearby screen and has a central maximum of width 3.5 m.What is the distance between the screen and the slit?

Accepted Answer

A)  9.5 m
B)  19 m
C)  38 m
D)  57 m
E)  76 m  B

Question 3

A double slit is illuminated with monochromatic light of wavelength 6.11 × 102 nm.The m = 0 and m = 1 bright fringes are separated by 1.8 cm on a screen which is located 3.5 m from the slits.What is the separation between the slits?

Accepted Answer

A)  4.0 × 10-5 m
B)  8.0 × 10-5 m
C)  1.2 × 10-4 m
D)  1.6 × 10-4 m
E)  2.4 × 10-4 m C

Question 4

Red laser light passes through a single slit to form a diffraction pattern.If the width of the slit is increased by a factor of two, what happens to the width of the central maximum? Note: Assume that the angle $\theta$ is sufficiently small so that (sin $\theta$ is nearly equal to $\theta$.

Accepted Answer

A)  The width of the central maximum increases by a factor of 4.
B)  The width of the central maximum decreases by a factor of 2.
C)  The width of the central maximum decreases by a factor of 4.
D)  The width of the central maximum increases by a factor of 2.
E)  The width of the central maximum does not change.

Question 5

Two stars are just barely resolved by a telescope with a lens diameter of 0.500 m.Determine the angular separation of the two stars.Assume incident light of wavelength 500.0 nm.

Accepted Answer

A)  1.22 × 10-6 rad
B)  5.66 × 10-5 rad
C)  2.44 × 10-7 rad
D)  4.88 × 10-5 rad
E)  1.22 × 10-7 rad

Question 6

Which one of the following statements best explains why the diffraction of sound is more apparent than the diffraction of light under most circumstances?

Accepted Answer

A)  Sound requires a physical medium for propagation.
B)  Sound waves are longitudinal, and light waves are transverse.
C)  Light waves can be represented by rays while sound waves cannot.
D)  The speed of sound in air is six orders of magnitude smaller than that of light.
E)  The wavelength of light is considerably smaller than the wavelength of sound.

Question 7

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm.
  
-Which fringe is the third order maximum?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 8

Light is incident on two slits that are separated by 0.2 mm.The figure shows the resulting interference pattern observed on a screen 1.0 m from the slits.Determine the wavelength of light used in this experiment.

Accepted Answer

A)  0.05 nm
B)  0.50 nm
C)  50 nm
D)  500 nm
E)  5000 nm

Question 9

Light from two sources, $\lambda$1 = 623 nm and $\lambda$2 = 488 nm, is incident on a diffraction grating that has 5550 lines/cm.What is the angular separation, $\theta$1 - $\theta$2, of the second order maxima of the two waves?

Accepted Answer

A)  11.0°
B)  15.0°
C)  25.0°
D)  32.8°
E)  43.8°

Question 10

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?

Accepted Answer

A)  Reduce the slit separation distance.
B)  Use red light instead of green light.
C)  Use blue light instead of green light.
D)  Move the screen farther away from the slits.
E)  Move the light source farther away from the slits.

Question 11

Visible light of wavelength 589 nm is incident on a diffraction grating that has 3500 lines/cm.At what angle with respect to the central maximum is the fifth order maximum observed?

Accepted Answer

A)  17.9°
B)  23.8°
C)  35.7°
D)  71.3°
E)  A fifth order maximum cannot be observed.

Question 12

Which one of the following phenomena would be observed if the distance between the slits is increased?

Accepted Answer

A)  The fringes would become brighter.
B)  The central bright fringe would change position.
C)  The distance between dark fringes would increase.
D)  The distance between bright fringes would increase.
E)  The angular separation between the dark fringes would decrease.

Question 13

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm.
  
-Which fringe is the same distance from both slits?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  E

Question 14

Light of wavelength 530 nm is incident on two slits that are spaced 1.0 mm apart.How far from the slits should the screen be placed so that the distance between the m = 0 and m = 1 bright fringes is 1.0 cm?

Accepted Answer

A)  7.9 m
B)  9.5 m
C)  16 m
D)  19 m
E)  36 m

Question 15

Which one of the following phenomena would be observed if the wavelength of light were increased?

Accepted Answer

A)  The fringes would be brighter.
B)  More bright fringes would appear on the screen.
C)  The distance between dark fringes would decrease.
D)  Single-slit diffraction effects would become non-negligible.
E)  The angular separation between bright fringes would increase.

Question 16

Complete the following sentence: The term coherence relates to

Accepted Answer

A)  the phase relationship between two waves.
B)  the polarization state of two waves.
C)  the diffraction of two waves.
D)  the amplitude of two waves.
E)  the frequency of two waves.

Question 17

In two separate double slit experiments, an interference pattern is observed on a screen.In the first experiment, violet light ($\lambda$ = 708 nm) is used and a second-order bright fringe occurs at the same location as a third-order dark fringe in the second experiment.Determine the wavelength of the light used in the second experiment.

Accepted Answer

A)  1320 nm
B)  862 nm
C)  503 nm
D)  431 nm
E)  495 nm

Question 18

A spy satellite is in orbit at a distance of 1.0 × 106 m above the ground.It carries a telescope that can resolve the two rails of a railroad track that are 1.4 m apart using light of wavelength 600 nm.Which one of the following statements best describes the diameter of the lens in the telescope?

Accepted Answer

A)  It is less than 0.14 m.
B)  It is greater than 0.14 m and less than 0.23 m.
C)  It is greater than 0.23 m and less than 0.35 m.
D)  It is greater than 0.35 m and less than 0.52 m.
E)  It is greater than 0.52 m.

Question 19

Which one of the following statements provides the most convincing evidence that visible light is a form of electromagnetic radiation?

Accepted Answer

A)  Two light sources can be coherent.
B)  Light can be reflected from a surface.
C)  Light can be diffracted through an aperture.
D)  Light can form a double-slit interference pattern.
E)  Light travels through vacuum at the same speed as X-rays.

Question 20

Light of wavelength 600 nm is incident upon a single slit with width 4 × 10-4 m.The figure shows the pattern observed on a screen positioned 2 m from the slits.Determine the distance s.

Accepted Answer

A)  0.002 m
B)  0.003 m
C)  0.004 m
D)  0.006 m
E)  0.008 m

Exam 27: Interference and the Wave Nature of Light

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is 300 nm closer to one slit than to the other?

Light with a wavelength of 600.0 nm is incident on a single slit of width 6.5 $\mu$ m.The resulting diffraction pattern is observed on a nearby screen and has a central maximum of width 3.5 m.What is the distance between the screen and the slit?

A double slit is illuminated with monochromatic light of wavelength 6.11 × 10²nm.The m = 0 and m = 1 bright fringes are separated by 1.8 cm on a screen which is located 3.5 m from the slits.What is the separation between the slits?

Red laser light passes through a single slit to form a diffraction pattern.If the width of the slit is increased by a factor of two, what happens to the width of the central maximum? Note: Assume that the angle $\theta$ is sufficiently small so that (sin $\theta$ is nearly equal to $\theta$ .

Two stars are just barely resolved by a telescope with a lens diameter of 0.500 m.Determine the angular separation of the two stars.Assume incident light of wavelength 500.0 nm.

Which one of the following statements best explains why the diffraction of sound is more apparent than the diffraction of light under most circumstances?

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is the third order maximum?

Light is incident on two slits that are separated by 0.2 mm.The figure shows the resulting interference pattern observed on a screen 1.0 m from the slits.Determine the wavelength of light used in this experiment.

Light from two sources, $\lambda$ ₁ = 623 nm and $\lambda$ ₂ = 488 nm, is incident on a diffraction grating that has 5550 lines/cm.What is the angular separation, $\theta$ ₁ - $\theta$ ₂, of the second order maxima of the 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?

Visible light of wavelength 589 nm is incident on a diffraction grating that has 3500 lines/cm.At what angle with respect to the central maximum is the fifth order maximum observed?

Which one of the following phenomena would be observed if the distance between the slits is increased?

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is the same distance from both slits?

Light of wavelength 530 nm is incident on two slits that are spaced 1.0 mm apart.How far from the slits should the screen be placed so that the distance between the m = 0 and m = 1 bright fringes is 1.0 cm?

Which one of the following phenomena would be observed if the wavelength of light were increased?

Complete the following sentence: The term coherence relates to

A spy satellite is in orbit at a distance of 1.0 × 10⁶ m above the ground.It carries a telescope that can resolve the two rails of a railroad track that are 1.4 m apart using light of wavelength 600 nm.Which one of the following statements best describes the diameter of the lens in the telescope?

Which one of the following statements provides the most convincing evidence that visible light is a form of electromagnetic radiation?

Light of wavelength 600 nm is incident upon a single slit with width 4 × 10^-⁴ m.The figure shows the pattern observed on a screen positioned 2 m from the slits.Determine the distance s.

Exam 27: Interference and the Wave Nature of Light

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is 300 nm closer to one slit than to the other?

Light with a wavelength of 600.0 nm is incident on a single slit of width 6.5 μ\muμ m.The resulting diffraction pattern is observed on a nearby screen and has a central maximum of width 3.5 m.What is the distance between the screen and the slit?

A double slit is illuminated with monochromatic light of wavelength 6.11 × 102 nm.The m = 0 and m = 1 bright fringes are separated by 1.8 cm on a screen which is located 3.5 m from the slits.What is the separation between the slits?

Red laser light passes through a single slit to form a diffraction pattern.If the width of the slit is increased by a factor of two, what happens to the width of the central maximum? Note: Assume that the angle θ\thetaθ is sufficiently small so that (sin θ\thetaθ is nearly equal to θ\thetaθ .

Two stars are just barely resolved by a telescope with a lens diameter of 0.500 m.Determine the angular separation of the two stars.Assume incident light of wavelength 500.0 nm.

Which one of the following statements best explains why the diffraction of sound is more apparent than the diffraction of light under most circumstances?

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is the third order maximum?

Light is incident on two slits that are separated by 0.2 mm.The figure shows the resulting interference pattern observed on a screen 1.0 m from the slits.Determine the wavelength of light used in this experiment.

Light from two sources, λ\lambdaλ 1 = 623 nm and λ\lambdaλ 2 = 488 nm, is incident on a diffraction grating that has 5550 lines/cm.What is the angular separation, θ\thetaθ 1 - θ\thetaθ 2, of the second order maxima of the 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?

Visible light of wavelength 589 nm is incident on a diffraction grating that has 3500 lines/cm.At what angle with respect to the central maximum is the fifth order maximum observed?

Which one of the following phenomena would be observed if the distance between the slits is increased?

The figure shows the interference pattern obtained in a double-slit experiment using light of wavelength 600 nm. -Which fringe is the same distance from both slits?

Light of wavelength 530 nm is incident on two slits that are spaced 1.0 mm apart.How far from the slits should the screen be placed so that the distance between the m = 0 and m = 1 bright fringes is 1.0 cm?

Which one of the following phenomena would be observed if the wavelength of light were increased?

Complete the following sentence: The term coherence relates to

A spy satellite is in orbit at a distance of 1.0 × 106 m above the ground.It carries a telescope that can resolve the two rails of a railroad track that are 1.4 m apart using light of wavelength 600 nm.Which one of the following statements best describes the diameter of the lens in the telescope?

Which one of the following statements provides the most convincing evidence that visible light is a form of electromagnetic radiation?

Light of wavelength 600 nm is incident upon a single slit with width 4 × 10-4 m.The figure shows the pattern observed on a screen positioned 2 m from the slits.Determine the distance s.

Light with a wavelength of 600.0 nm is incident on a single slit of width 6.5 $\mu$ m.The resulting diffraction pattern is observed on a nearby screen and has a central maximum of width 3.5 m.What is the distance between the screen and the slit?

A double slit is illuminated with monochromatic light of wavelength 6.11 × 10²nm.The m = 0 and m = 1 bright fringes are separated by 1.8 cm on a screen which is located 3.5 m from the slits.What is the separation between the slits?

Red laser light passes through a single slit to form a diffraction pattern.If the width of the slit is increased by a factor of two, what happens to the width of the central maximum? Note: Assume that the angle $\theta$ is sufficiently small so that (sin $\theta$ is nearly equal to $\theta$ .

Light from two sources, $\lambda$ ₁ = 623 nm and $\lambda$ ₂ = 488 nm, is incident on a diffraction grating that has 5550 lines/cm.What is the angular separation, $\theta$ ₁ - $\theta$ ₂, of the second order maxima of the two waves?

Light of wavelength 600 nm is incident upon a single slit with width 4 × 10^-⁴ m.The figure shows the pattern observed on a screen positioned 2 m from the slits.Determine the distance s.