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प्रश्न
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?
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उत्तर
We can identify convex mirror, concave mirror, and a plane mirror by looking at them one by one.
- If the size of the image of an object is of the same size as that of the object, then that mirror is a plane mirror.
- If the size of image of an object increases as the object is brought closer to the mirror and the size of the image of the object decreases when the object is taken away from the mirror, then that mirror is a concave mirror.
- If the size of the image of an object remains diminished, either the object is moved away from the mirror or moved towards the mirror, then that mirror is a convex mirror.
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संबंधित प्रश्न
How is the position of image formed by a plane mirror related to the position of the object ?
You are standing at a distance of 2 meters from a plane mirror.
What is the distance between you and your image?
A light ray is incident normally on a plane mirror. What is the direction of reflected ray? Show it on a diagram.
Figure shows an incident ray AO and the normal ON on a plane mirror. The angle which the incident ray AO makes with mirror is 30°. (a) Find the angle of incidence. (b) Draw the reflected ray and then find the angle between the incident and reflected rays.
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.
State whether the following statement is true or false. If false, correct it.
If the incident ray makes an angle of Xo with the normal, then the reflected ray is 2Xo.
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.
Complete the path of incident ray in the following case.
A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as shown in the Figure. Which of the following could be inside the box?
