to the far point of the eye 2.to the retina of the eye 3.to the near point of the eye 4.none of the above
cm 2.-6 cm cm cm cm
virtual and inverted 2.real and inverted if your distance from the mirror is greater than two focal lengths 3.real and inverted 4.real and upright 5.virtual and upright
real and upright 2.virtual and upright 3.virtual and inverted 4.real and inverted 5.none of the above because you do not get an image
virtual and closer to the viewer than the object 2.virtual and farther from the viewer than the object 3.real and farther from the viewer than the object 4.real and closer to the viewer than the object 5.virtual and the same distance from the viewer as the object
as a convex lens in air 2.as a concave lens in air 3.as the glasses worn by a farsighted person 4.as a concave mirror in air 5.as a flat refracting surface between water and air as seen from the water side
convex lens closer than one focal length to the burning candle. 2.biconcave lens farther than one focal length from the burning candle 3.concave mirror farther than one focal length from the burning candle 4.convex mirror farther than one focal length from the burning candle 5.concave mirror closer than one focal length to the burning candle
The object in a ray diagram is perpendicular to the principal axis but does not have one end lying on the principal axis. What is the minimum number of rays that must be drawn in this ray diagram in order to determine the position of the image?
True 2.False
You wish to reflect sunlight from a mirror onto some paper under a pile of wood in order to start a fire. Which would be the best choice for the type of mirror? Flat. 2.Concave. 3.Convex.
the mirror is concave and the image is real 2.the mirror is concave and the image is virtual 3.the mirror is convex and the image is real 4.the mirror is convex and the image is virtual
What is the focal length of a pane of window glass? Zero. 2.Infinity. 3.The thickness of the glass. 4.Impossible to determine.
Diving masks often have a lens built into the glass for divers who do not have perfect vision. This allows the individual to dive without the necessity for glasses, because the lenses in the faceplate perform the necessary refraction to provide clear vision. The proper design allows the diver to see clearly with the mask on both under water and in the open air. Normal eyeglasses have lenses that are curved on both the front and rear surfaces. The lenses in a diving mask should be curved _____ only on the front surface 2.only on the rear surface 3.on both the front and rear surfaces
A curved mirrored surface can have _____ spherical aberration but not chromatic aberration 2.chromatic aberration but not spherical aberration 3.both spherical aberration and chromatic aberration
A camera can be modeled as a simple converging lens that focuses an image on the film, acting as the screen. A camera is initially focused on a distant object. To focus the image of an object close to the camera, the lens must be _____ moved away from the film 2.left where it is 3.moved toward the film
Two campers wish to start a fire during the day. One camper is nearsighted and one is farsighted. Whose glasses should be used to focus the Sun's rays onto some paper to start the fire? Either camper. 2.The nearsighted camper. 3.The farsighted camper.
The eyeglasses on the left correct for nearsightedness. The eyeglasses on the right correct for farsightedness. 2.Both the eyeglasses correct for farsightedness. 3.The eyeglasses on the left correct for farsightedness. The eyeglasses on the right correct for nearsightedness. 4.Both the eyeglasses correct for nearsightedness.
Does your bathroom mirror show you older or younger than you actually are? Compute an order-of-magnitude estimate for the age difference, based on data that you specify