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प्रश्न
State four characteristics of the image formed by a plane mirror.
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उत्तर
- Image formed by a plane mirror is always virtual and erect.
- The size of the image is equal to that of the object.
- The image formed is as far behind the mirror as the object is in front of it.
- The image is laterally inverted.
संबंधित प्रश्न
Write true or false of the following statement.
The image of the right hand in a plane mirror looks like that of a left hand.
Draw a diagram to show the reflection of a ray of light using a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
The diagram below in figure shows an object XY in front of a plane mirror MM1 . Draw on the diagram, path of two rays from each point X and Y of the object to show the formation of its image .
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
You are provided a convex mirror, a concave mirror and a plane mirror. How will you distinguish between them, without touching or using any other apparatus?
In the figure is shown a concave mirror. A is a point on the principal axis. If an object O is kept at A, image is formed on A itself. Copy the diagram. Draw the image in the diagram. Is the image real or virtual?
Measure the distance PA and write it in the diagram. What is the distance PA called?
Mark a point B on the principal axis, at which, if a point source of light is kept, the rays travel parallel to principal axis after reflection from M. What is point B called?
Identify the following kind of beam of light.
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
By geometrical construction, find the position of the image in the following figure.
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give reason for your answer.
Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
 |
 |
| A | B |
 |
 |
| C | D |
______ through which light can pass completely.
Part of the eye which controls the light entering is called
