The electric field for a plane electromagnetic wave traveling in the +y direction is shown. Consider a point where ® is in the +z direction. The 4 field is:
The diagram shows the passage of a ray of light from air into a substance X. The index of refraction of X is:
If nwater = 1.33, what is the angle of refraction for the ray shown?
Which diagram below illustrates the path of a light ray as it travels from a given point X in air to another given point Y in glass?
The index of refraction for diamond is 2.5. Which of the following is correct for the situation shown?
When light travels from medium X to medium Y as shown:
A ray of light passes through three media as shown. The speed of light in these media obey:
The rectangular metal tank shown is filled with an unknown liquid. The observer, whose eye is level with the top of the tank, can just see corner E. The index of refraction of this liquid is:
A hollow lens is made of thin glass as shown. It can be filled with air, water (n = 1.3) or CS2 (n = 1.6). The lens will diverge a beam of parallel light if it is filled with:
Binoculars and microscopes are frequently made with "coated optics" by adding a thin layer of transparent material to the lens surface as shown. One wants:
Red light is viewed through a thin vertical soap film. At the second dark area shown, the thickness of the film, in terms of the wavelength within the film, is:
Yellow light is viewed by reflection from a thin vertical soap film. Let l be the wavelength of the light within the film. Why is there a large dark space at the top of the film?
Three experiments involving a thin film (in air) are shown. If t denotes the film thickness and l denotes the wavelength of the light in the film, which experiments will produce constructive interference as seen by the observer?
A lens with a refractive index of 1.5 is coated with a material of refractive index 1.2 in order to minimize reflection. If l denotes the wavelength of the incident light in air, what is the thinnest possible such coating?
Monochromatic plane waves of light are incident normally on a single slit. Which one of the five figures below correctly shows the diffraction pattern observed on a distant screen?
The diagram shows a single slit with the direction to a point P on a distant screen shown. At P, the pattern has its second minimum (from its central maximum). If X and Y are the edges of the slit, what is the path length difference (PX) – (PY)?
Two wavelengths, 800 nm and 600 nm, are used separately in single-slit diffraction experiments. The diagram shows the intensities on a far-away viewing screen as function of the angle made by the rays with the straight-ahead direction. If both wavelengths are then used simultaneously, at which angle is the light on the screen purely 600-nm light?
A beam of white light (from 400 nm for violet to 700 nm for red) is normally incident on a diffraction grating. It produces two orders on a distant screen. Which diagram below (R = red, V = violet) correctly shows the pattern on the screen?
Light of wavelength is normally incident on some plane optical device. The intensity pattern shown is observed on a distant screen (q is the angle measured to the normal of the device). The device could be: