Mirrors and Lenses Test
If an object is placed at twice the focal length of a convex lens, where is the image on the other side of the image?
2f
A concave mirror produces an image that is smaller, inverted, and real. Which is true regarding the image distance?
It is farther away than c
What happens to the path of light parallel to the principal axis after it passes through a converging lens?
It passes through the focus on the other side of the lens
A light ray, traveling parallel to a concave mirror's axis, strikes the mirror's surface near its midpoint. After reflection this ray,
passes through the mirror's focal point
If the radius of curvature is r, the focal length is
r/2
If the image distance is positive, the image formed is
real
The magnification for a concave lens is always __________
reduced
The virtual lense of an object is always on the ______ side of the lens as the object
same
What is the size and position of an image formed by a plane mirror?
same size, same distance away from the mirror
An object is place at a concave mirror's center of curvature. The image produced is located at
the center of curvature
A negative magnification for a mirror means
the image is inverted, and the mirror is concave
For a convex lens to produce a real, enlarged, inverted image, which of the following is true?
the object's distance must be greater than f but shorter than c
If the magnification is a positive value, the image is
upright
A concave lens always produces what type of image?
virtual
Convex mirrors produce real or virtual images?
virtual
IF the image distance is negative, the image formed if
virtual
A object is placed between a convex lens and its focal point. The image formed is (real/virtual, erect/inverted)
virtual and erect
An object is situated b/n a concave mirror's surface and it's focal point. The image form is (real/virtual, erect/inverted)
virtual and erect
A convex mirror forms a ______, _______, and ______ image for all real objects regardless of location of the object
virtual, diminished, upright
A plane mirror forms an image that is
virtual, upright, same size, equal distance as object
Under which conditions does a concave mirror produce an enlarged virtual image?
when the object is between f and the mirror
If you stand in a convex mirror at the same distance as the focal point, (a) you will see your image and it will appear larger (b) you will see you image at your same height (c) you will see your image, and you will appear smaller (d) you won't see your image because it's focused at a different distance (e) you won't see your image, because there is none
you will see your image and it will appear smaller
If you stand in front of a concave mirror exactly at its focal point (a) you will see your image and it will appear larger (b) you will see you image at your same height (c) you will see your image, and you will appear smaller (d) you won't see your image because it's focused at a different distance (e) you won't see your image, because there is none
you won't see your image, because there is none
When a magnification is greater than one, the images is
larger than the object
The _____________ applies to all surfaces on the scale of wavelength of visible light
law of reflection
Concave spherical mirrors produce images which (a) are always the same size as the actual object (b) are always smaller than the actual object (c) could be smaller than, larger than, or the same size as the actual object depending on the placement of the object (d) always larger than the object
(c) could be smaller than, larger than, or the same size as the actual object depending on the placement of the object
virtual image
An image formed when the light rays do not actually pass through the image location and would not appear on any paper or film placed at the location
Which is formed by divergent rays? (a) virtual image (b) real image (c) focal point (d) object
a. virtual image
A convex lens has a focal length f. An object is placed between f and 2f on the axis. The image formed is located
at a distance greater than 2f from the lens
A convex lens has a focal length f. An object is placed at f on the axis. The image formed is located
at infinity
Light arriving at a concave mirror on a path through the center of curvature is reflected
back on itself
Light arriving at a concave mirror on a path through the focal point is reflected
back parallel to the axis
A concave mirror produces an image that is larger, inverted, and real. Which is true regarding the image distance?
between c and f
A convex lens has a focal length f. An object is placed between infinity and 2f from the lens on its axis. The image formed is located
between f and 2f
Where do incident rays that parallel to the principal axis converge to after reflecting off a concave mirror? (a) a virtual image (b) real image (c) focal point (d) they don't converge
c. focal point
By definition, which type of mirror has its edges curved toward the object?
concave mirror
Which type of mirror has its edges curved away from the object?
convex mirror
What is the nature of an image formed by a concave mirror of focal length 10 cm for a real object placed 3 cm from the mirror? (a) real and inverted (b) real and upright (c) virtual and inverted (d) virtual and upright
d. virtual and upright
A concave lense is also called a
divergent lens
The focal point of a spherical mirror is ___ the radius of curvature
half
