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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
What do you mean by the term reflection of light ?
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 .
A ray is incident on a plane mirror . Its reflected ray is perpandicular to the incident ray . Find the angle of incidence .
Define Regular reflection.
Why are infinite images not seen when two plane mirrors are facing each other?
State two advantages and two disadvantages of the reflecting periscope.
A converging mirror, forms three times magnified virtual image when an object is placed at a distance of 8 cm from it. Calculate:
- the position of the image
- the focal length of the mirror.
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?
Identify the following kind of beam of light.
Show an incident ray AO and the normal ON a plan mirror. draw the reflected ray and then find the angle between the incident and reflected rays.
State whether the following statement is true or false. If false, correct it.
The image in a plane mirror is situated in the mirror.
The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held perpendicular to the mirror.
Locate the image termed when the object is placed between two planes as shown in the following figure.
Figure shows a ray of light as it travels from medium A to medium B. Refractive index of the medium B relative to medium A is
Suppose we wish to obtain the real image of a distant tree. Explain two possible ways in which we can do it.
The light falling on the mirror is called as ______ and the light reflected is called reflected ray.
Play with a mirror
Write your name with a sketch pen on a thin sheet of paper, polythene or glass. Read your name on the sheet while standing in front of a plane mirror. Now look at your image in the mirror.
A burning candle in water
Take a shoe box, open on one side. Place a small lighted candle in it. Place a clear glass sheet (roughly 25 cm × 25 cm) in front of this candle figure. Try to locate the image of the candle behind the glass sheet. Place a glass of water at its position. Ask your friends to look at the image of the candle through the sheet of glass. Ensure that candle is not visible to your friends. Your friends will be surprised to see the candle burning in water. Try to explain the reason.
