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प्रश्न
You are given three mirrors of different types. How will you identify each one of them?
उत्तर
We are given three different types of mirrors. To identify each one of them we will take an object and place it in different positions. Accordingly, we will get the positions of the image and nature of the image for each mirror, through which mirrors can be identified.
| Properties of the image formed | Plane mirror | Concave mirror | Convex mirror |
| Real or virtual | Virtual | Real except when the object is near the mirror | Virtual |
| Erector inverted | Always erect | Inverted when real and erect when virtual | Always erect |
| Size of image | Image formed is of the same size as the object | Diminished for certain positions and enlarged for others | Always diminished |
APPEARS IN
संबंधित प्रश्न
Which type of mirror is used in the following?
Periscope
If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be
The outer surface of a flat steel plate acts as a ___________ mirror.
The outer shining surface of a round bottom steel bowl acts as a __________ mirror.
An erect and enlarged image of an object is formed on a screen. Explain how this could be possible.
A person AB of height 170 cm is standing in front of a vertical plane mirror. His eyes are at height 164 cm from ground. At what distance from P should a hole be made in the mirror so that he cannot see the top of his head?
A plane mirror is moving with velocity `4hati + 5hatj + 8hatk`. A point object in front of the mirror moves with a velocity of `3hati + 4hatj + 5hatk`. Here `hatk` is along the normal to the plane mirror and facing toward the object. The velocity of the image is ______.
If two plane mirrors are kept at 60° to each other, then the number of images formed by them is ______.
Which type of mirror is used in the following?
Kaleidoscope
Role play
Here is a game that a group of children can play. One child will be chosen to act as object and another will act as the image of the object. The object and the image will sit opposite to each other. The object will make movements, such as raising a hand, touching an ear etc. The image will have to make the correct movement following the movement of the object. The rest of the group will watch the movements of the image. If the image fails to make the correct movement, she/he will be retired. Another child will take her/his place and the game will continue. A scoring scheme can be introduced. The group that scores the maximum will be declared the winner.
