Converging Mirror or Concave Mirror
Converging Mirror or Concave Mirror
Converging Mirror or Concave Mirror
Concave Mirror can be considered as a part of a sphere. Consider a hollow glass sphere and cut a piece of the sphere as shown in the figure. The cut off piece has two surfaces, one which is bulging out or convex surface and other is a hollow surface that is on the same side as the centre of the original sphere is called as concave surface.
If we polish the bulging surface or convex surface with silver and look at it from the hollow side or concave surface, we have a concave mirror. These mirrors, which are referred to as convergent mirrors, concentrate the light rays, coming parallel to the principal axis causing them to converge on to a point known as the focal point. Concave mirrors form real images that can be projected on to a screen if the object is farther away than the focal point. The image obtained is large if formed near the focal point or small if formed far away from the focal point. In both cases, the image is reversed. If we place the object closer than the focal point, the image is formed upright and large but virtual (i.e., it cannot be projected).
Reflection Through Concave Mirror :
When a narrow beam of light traveling parallel to the principal axis is incident on the reflecting surface of a concave mirror,as shown in the figure, each ray is reflected according to the laws of reflection and converge to a point F on the principal axis known as the focus. As the rays are converging after reflection the concave mirror is also called converging mirror.
USES OF CONCAVE MIRRORS:
A magnified image can be formed by ________ mirror. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) Concave mirror is also called converging mirror. (b) Convex mirror is also called converging mirror. (c) Dentists use concave mirrors to see large images of the teeth. (d) Dentists use convex mirrors to see large images of the teeth. | |||
| Right Option : C | |||
| View Explanation | |||
Real image is formed by ______ mirror. | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
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Prisha Gupta
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Om Umang
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Shivam Rana
7thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
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Barkha Arora
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
