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Terms in this set (45)
A converging lens?
Is thicker in the center than at the edges, refracts parallel rays of light, will converge parallel rays into light, will bend parallel rays of light so they cross at a single point.
An image of a distant object formed by a single converging lens?
Is upside down, can be projected on a wall, can be focused on a screen, is real.
An image formed by a single diverging lens?
A magnifying glass is usually a?
Ray diagrams are used to?
Figure out where an image will be located.
In drawing a ray diagram, one of the rays can be drawn?
Through the center of the lens, from the tip of the object arrow, parallel to the axis, throug the focal point in front of the lens.
If an object is located between the focal point and a converging lens, the image will be?
Larger than the object.
The reason lines on the bottom of a swimming pool can look wavy when seen from above?
The uneven surface of the water refracts light at different angles.
If an object is located inside the focal length of a diverging lens, then compared to the object image will be?
If an object is located inside the focal length of a converging lens, the image will be?
All lenses rely on light having a?
Slower speed in the lenses.
A simple astronomical telescope consists of?
A pair of converging lenses.
The objective lens in a compound microscope forms a?
The eyepiece of a compound microscope forms a?
When slides are out right-side up into a slide projector, the images are?
If light traveled at the same speed in glass as it does in air, images through a telescope would look?
The same as they would without the telescope.
The image your eye receives is?
On a bright day, the iris of the eye changes so the pupil?
If a persons eye cannot form sharp images at any distance, the person?
Sometimes after light passes through a lens, they are tiny bands of color around the edge of the image. This is due to?
The eyes of nearsighted people focus light?
In front of the retina.
Farsighted people need to wear glasses that contain?
Spherical aberration occurs when light passes through?
The edges of a lens.
Chromatic aberration occurs because different colored light rays?
Refract at different angles when passing through a lens.
A magnifying glass under water will magnify?
The way bright and dark lines at the bottom of a swimming pool are the result of the water surface behaving like moving?
If a fish out of water wished to clearly view its surroundings, it should wear googles filled?
Suppose you are 2 m in front of a plane mirror and want to take your picture. For what distant should you set the camera?
A lens for which parallel rays of light meet after passing through it is called a converging lens.
The principal axis of a lens is a line drawn from top to bottom along the center of the lens.
The focal point of a lens is the place where rays of light falling on the lens cross or appear to have crossed the principal axis.
A real image can be projected onto a screen.
A ray diagram is a sketch of selected rays reflected from a surface or refracted through a lens.
A telescope is a collection of lenses that allows us to look at very distant objects.
A projector is the part of a camera that focuses light on the film.
The eye contains a converging lens that focuses light.
The amount of light that enters the eye is regulated by the iris.
Nearsighted people can clearly see objects that are close to them.
Astigmatism is remedied by glasses that have converging lense in them.
The point on the principal axis at which parallel rays of light cross after passing through a convergent lens is the focal point.
A real image formed by a single converging lens is always upside down a single diverging lens will produce an image that is always virtual, smaller, and right side up.
Light entering the eye focuses on a layer of light sensitive tissue at the back of the eye called the retina.
If a person is farsighted, his or her eye forms images in front of the retina.
A nearsighted person needs to wear glasses that have covering lenses in them
Which instrument is a human eye most similar to?
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