Which best describes what happens when light traveling through air enters water at an angle?
It moves along straight lines in air and changes direction when it enters water
. Which ray would appear on a ray diagram for both a concave lens and a convex lens?
Which statement given best describes what happens to light as it passes from air into a piece of glass?
Glass is denser than air
, so a light ray passing from air into glass slows down. If the ray meets the boundary at an angle to the normal , it bends towards the normal. The reverse is also true.
When all else remains the same what effect?
Ceteris paribus
, literally “holding other things constant,” is a Latin phrase that is commonly translated into English as “all else being equal.” A dominant assumption in mainstream economic thinking, it acts as a shorthand indication of the effect of one economic variable on another, provided all other variables …
When parallel light rays exit a concave lens What is the light ray?
When parallel light rays exit a concave lens, the
light rays
. Different kinds of lenses are used in eyeglasses to help people with eye conditions. Farsightedness is an eye condition in which distant objects appear clear but close objects appear blurry.
What happens to light when it enters a lens quizlet?
What happens to light rays when they pass through a convex lens?
The light changes direction when it enters and exits the prism
. When white light is shone through a triangular prism, a rainbow of light is seen on the opposite side of the prism. … The light rays spread out.
What are the two characteristic of light?
The physical properties of light are
intensity (or quantity), direction, wavelength (or colour), polarity and coherence
. Intensity is in simple terms the brightness of light, at least if you ignore that the human eye is more sensitive to some colours than others.
What is it called when light hits an area and bounces back?
Reflection
.
Reflection
is when incident light (incoming light) hits an object and bounces off. Very smooth surfaces such as mirrors reflect almost all incident light.
Where do the three ways in a ray diagram start?
The three rays in a ray diagram start
from a single point on the object
. The three rays are called the the principal rays that are used to determine the location and the size of the image.
What effect does decreasing the focal length have on a convex lens?
When all else remains the same, what effect would decreasing the focal length have on a convex lens?
It would make the lens stronger
. You just studied 10 terms!
What effect would decreasing the focal length have on a convex lens?
They are all refracted toward a central axis. When all else remains the same, what effect would decreasing the focal length have on a convex lens?
It would cause the lens to produce only real images
. It would cause the lens to produce only virtual images.
What does a concave lens do to light rays ?
The concave lens is a diverging lens, because
it causes the light rays to bend away (diverge) from its axis
. In this case, the lens has been shaped so that all light rays entering it parallel to its axis appear to originate from the same point, F, defined to be the focal point of a diverging lens.
Where is the focal point for a concave lens located?
The focal point of a concave lens is
the point where light rays parallel to the axis seem to diverge from after passing through the lens
. The distance from the lens to this point is called the focal length of the lens.
Which best describes the type of lens that would help someone with one of these eye conditions quizlet?
Which best describes the type of lens that would help someone with one of these eye conditions?
Concave lenses
would help someone who is nearsighted because the lenses make objects look smaller and closer. Which describes an image that can be produced by a concave lens? The image is virtual and smaller than the object.
Is it true that in yellow light a red scarf appears white?
Green and blue are PRIMARY colors that combine in equal amounts to produce cyan. A clear glass window is transparent, but a fogged-up glass window is OPAQUE. In yellow light, a red scarf
appears WHITE
. … The color of ink that you see is result of the color that the pigment in the ink REFLECTS.
What happens when light passes through concave lens?
When parallel rays of light enter a concave lens,
the light waves refract outward, or spread out
. The light rays refract twice: first when entering the lens and second when leaving the lens. Only the light rays passing through the center of the lens remain straight.
What happens when light passes through a lens?
Lenses serve to
refract light
at each boundary. As a ray of light enters a lens, it is refracted; and as the same ray of light exits the lens, it is refracted again. … Because of the special geometric shape of a lens, the light rays are refracted such that they form images.
