Exam 7: Optics and Wave Effects

A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the lens surface on the principal axis. Sketch a ray diagram and give the characteristics of the image.

The photoreceptors responsible for "twilight" vision are called

For total internal reflection, light is ______________ and none is ______________.

FM radio reception may be blocked by buildings because the wavelengths are too short to be ______________ around buildings.

A lens that is thicker at the center than at the edge is called a(n) ______________ lens.

Complete destructive interference occurs for two waves of the same amplitude and frequency when the waves are ______________ degrees out of phase.

A diamond is said to have "fire" because of ______________.

The photoreceptors responsible for color vision are called ______________.

Optics is divided into ray optics and ______________ optics.

The image of an object at the focal point of a concave spherical mirror

A ray of light in water strikes an air-water interface at an angle of incidence greater than the critical angle. The ray

The preferential orientation of the EM field vectors of light is called ______________.

The speed of light in a particular transparent medium is 2/8 the speed of light in a vacuum. What is the index of refraction of the material?

A visual defect wherein a person can see nearby objects clearly but not distant objects is called

The bending of waves around corners is called

When light enters a denser medium and is refracted,

When light strikes a transparent medium, some light is reflected and some is ______________.

A change in the direction of a wave because of a change in the velocity of the wave is called ______________.

The index of refraction of transparent materials is

The change in the direction of a wave resulting from its encountering a small slit is known as