Exam 24: Wave Optics

A silicon monoxide thin film (n = 1.45)of thickness 73.9 nm is applied to a camera lens made of glass (n = 1.55).This will result in destructive interference for reflected light of what wavelength?

A Young's double slit has a slit separation of 1.65 × 10−⁵ m on which a monochromatic light beam is directed.The resultant bright fringes on a screen 1.10 m from the double slit are separated by 2.25 × 10−² m.What is the wavelength of this beam? (1 nm = 10−⁹ m)

When light shines on a lens placed on a flat piece of glass,interference occurs which causes circular fringes called Newton's rings.The two beams that are interfering come:

Helium-neon laser light (λ = 632.8 nm)is sent through a single slit of width 0.55 mm.What is the width of the central maximum on a screen 1.4 m in back of the slit? (1 nm = 10−⁹ m)

The dark spot observed in the center of a Newton's rings pattern is attributed to which of the following?

Sunlight reflected from a smooth ice surface is completely polarized.Determine the angle of incidence.(n_ice = 1.309)

A Young's interference experiment is conducted with violet argon laser light (λ = 409 nm).The separation between the slits is 0.66 mm,and the interference pattern appears on a screen 3.8 m away.What is the spacing between the bright fringes? (1 nm = 10−⁹ m)

At what angle will the highest-order maximum appear for a wavelength of 412 nm using a grating with 435 lines per mm?

How far above the horizon is the Moon when its image reflected in calm water is completely polarized? (n_water = 1.333)

If a wave from one slit of a Young's double-slit set-up arrives at a point on the screen one wavelength behind the wave from the other slit,what is observed at that point?

A beam of unpolarized light in air strikes a flat piece of glass at an angle of incidence of 50.6°.If the reflected beam is completely polarized,what is the index of refraction of the glass?

If the 5th-order fringe in Young's double-slit experiment occurs at an angle of 38.7°,what is the relationship between the wavelength λ and the distance between slits,d?

Light of wavelength 420 nm is incident on a slit of width 0.20 mm,and a diffraction pattern is produced on a screen that is 1.80 m from the slit.What is the width of the central bright fringe? (1 nm = 10−⁹ m)

LCD stands for:

Light travels from inside a building to outside through a pane of glass.Which of the following is true regarding the phase change upon reflection in the case?

Two flat glass plates are in contact along one end and are separated by a sheet of paper 3.3 × 10−⁶ m thick at the other end.The top plate is illuminated by a monochromatic light source of wavelength 514 nm.How many dark parallel bands will be evident across the top plate? (1 nm = 10−⁹ m)

Two thin layers of material with different indices of refraction are coated on a glass plate.The outer first material has n₁ = 1.461,the inner second material has n₂ = 1.544,and the glass has n_glass = 1.62.If light is incident from air on the first layer,what is the phase change for light that reflects from the glass?

In a Young's experiment,the paths from the slits to a point on the screen differ in length causing constructive interference at the point.Which of the following path differences would cause this constructive interference?

The intensity of unpolarized light passing through a single sheet of polarizing material changes by a factor of:

That all points on a wave front act as new sources of spherical waves is attributed to: