Image forming in plane mirrors

In summary, when an object is reflected in a plane mirror, the reflected rays create a virtual image that appears to be behind the mirror. This image is the same size as the object and cannot be magnified or diminished. Multiple images can be formed from a single object by using two mirrors at different angles, with the exact number depending on the angle between the mirrors and the object.
  • #1
physicolic
6
0
As we know if the angle between two intersecting plane mirrors is 60 degrees 360/60 minus 1= 5 images of an object between the mirrors are formed. what will happen if the angle is 65 or 42,6 degrees?
 
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  • #2
Do you know WHY you get that result for 60 degrees?
(Draw a picture.)
 
  • #3
thank you i just understood.
 
  • #4
I draw the rays of light and saw the answer. thanx
 

1. How does an image form in a plane mirror?

When light rays from an object hit a plane mirror, they are reflected off the mirror's surface at the same angle that they hit it. These reflected rays then enter our eyes, creating the illusion of an image behind the mirror. This is known as virtual image formation.

2. Why is the image formed in a plane mirror called a virtual image?

The image formed in a plane mirror is called a virtual image because it appears to be behind the mirror, but in reality, it does not physically exist. The light rays do not actually converge at the location of the image, but our brains perceive it as if they do.

3. What is the size of the image formed in a plane mirror?

The size of the image formed in a plane mirror is the same as the size of the object being reflected. This is because the reflected rays are at the same angle as the incident rays, resulting in a one-to-one correspondence between the object and its reflection.

4. Can the image formed in a plane mirror be magnified or diminished?

No, the image formed in a plane mirror cannot be magnified or diminished. The size of the image remains the same as the size of the object. However, the image can appear larger or smaller depending on the distance between the object and the mirror.

5. How many images can be formed from a single object in two plane mirrors at different angles?

Two plane mirrors at different angles can form multiple images of a single object. The exact number of images depends on the angles between the mirrors and the object. For example, if the mirrors are perpendicular to each other, three images will be formed. If the mirrors are at a 60-degree angle, six images will be formed. However, only one virtual image will be formed from each mirror individually.

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