Physics final study guide

• Fused quartz has an index of refraction of 1.56 for light from a 560-nm source. What is the speed of light for this wavelength within the quartz?

  1.92 × 108 m/s
• A ray of light is incident on the surface of a block of clear ice at an angle of 30° with the normal. Part of the light is reflected and part is refracted. Find the angle of reflection.

  30°
• A ray of white light, incident upon a glass prism, is dispersed into its various color components. Which one of the following colors experiences the greatest angle of deviation?

  violet
• Which of the following describes what will happen to a light ray incident on an air-to-glass boundary?

  partial reflection, partial transmission
• The wave-particle duality of light means that, in the same experiment:

  light will act either like a wave or like a particle
• When light from air hits a smooth piece of glass (n = 1.5) with the ray perpendicular to the glass surface, which of the following will occur?

  reflection and transmission with θ2 = 0°
• When the reflection of an object is seen in a convex mirror the image will:

  always be virtual
• Which of the following best describes the image of a concave mirror when the object’s distance from the mirror is less than the absolute value of the focal point distance?

  virtual, upright and image is larger than the object
• When the image is formed infront of a mirror, it is called

  real image
• Which of the following best describes the image of a concave mirror when the object’s distance from the mirror is greater than the radius of curvature?

  real, inverted and image is smaller than the object
• When the reflection of an object is seen in a convex mirror the image will:

  always be virtual
• When light reflects and produces a clear image, this reflection is referred to as:

  specular reflection
• A convex mirror with focal length of −20 cm forms an image 12 cm behind the surface. Where is the object located as measured from the surface?

  30 cm