Admin Table of Contents
- 1 What happens to the image if an object is placed less than focal length in front of a concave mirror?
- 2 What happens to the image when the object distance is greater than the focal length of the lens?
- 3 What are the location orientation size and type of image formed in lenses?
- 4 Can a concave mirror be used to produce an inverted image?
What happens to the image if an object is placed less than focal length in front of a concave mirror?
A virtual image is formed if the object is located less than one focal length from the concave mirror. To see why this is so, a ray diagram can be used.
How does the size of the image change as the object gets closer to the mirror?
Starting from a large value, as the object distance decreases (i.e., the object is moved closer to the mirror), the image distance increases; meanwhile, the image height increases. At the center of curvature, the object distance equals the image distance and the object height equals the image height.
Can an image be larger than the object even though its magnification is negative explain?
If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object. If the magnification is positive, the image is upright compared to the object; if m is negative, the image is inverted compared to the object.
What happens to the image when the object distance is greater than the focal length of the lens?
Figures 18.17 and 18 show a real image produced as long as the object distance is greater than the focal length. For a real image, the light actually passes through the image. If a card or screen is placed at the location of the image, an image will be projected on the card or screen.
What happens to the size of the real image as the object is slowly moved from its original position beyond C toward F?
If we move the object further and further away, the image will get smaller and smaller. The image’s location will move closer and closer to the focal point.
What happen to the image size and its location as the object comes nearer the convex lens?
Moving the object closer to the lens gives the following ray diagram. Clearly, moving the object closer to the lens makes the image become both larger and further away. As you move the object closer and closer to the focal point, the image will become further and further away.
What are the location orientation size and type of image formed in lenses?
Image Formation by Convex Lens
| Object location | Image location | Image nature |
|---|---|---|
| Infinity | At F2 | Real and Inverted |
| Beyond 2F1 | Between 2F2 and F2 | Real and Inverted |
| Between 2F1 and F1 | Beyond 2F2 | Real and Inverted |
| At F1 | At infinity | Real and Inverted |
What determines the size of image formed by a concave mirror?
It mainly depends on the distance between the object and the mirror. Concave mirrors form both real and virtual images. When the concave mirror is placed very close to the object, a virtual and magnified image is obtained and if we increase the distance between the object and the mirror, the size of the image reduces and real images are formed.
What happens when an object is placed in front of a mirror?
When an object is placed in front of a mirror, the image of the same object is seen in the mirror. The object is the source of the incident rays and the image is formed by the reflected rays. Based on the interaction of light, the images are classified as either a real image or a virtual image.
Can a concave mirror be used to produce an inverted image?
Identify the means by which you can use a concave and/or a plane mirror to produce an inverted image. Only a concave mirror can be used to produce an inverted image; and this only occurs if the object is located at a position of more than one focal length from the concave mirror.
What happens when a ray passes through a concave mirror?
A ray passing through the center of curvature of the spherical mirror will retrace its path after reflection. By changing the position of the object from the concave mirror, different types of images can be formed. Different types of images are formed when the object is placed: