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Image formed by a convex ______ is always virtual and smaller in size. - Science

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प्रश्न

Image formed by a convex ______ is always virtual and smaller in size.

रिक्त स्थान भरें
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उत्तर

Image formed by a convex mirror is always virtual and smaller in size.

Explanation:

A convex mirror diverges light rays, causing the image to appear behind the mirror, which is virtual and diminished compared to the actual object.

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अध्याय 15: Light - Exercises [पृष्ठ १८९]

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एनसीईआरटी Science [English] Class 7
अध्याय 15 Light
Exercises | Q 1.2 | पृष्ठ १८९

संबंधित प्रश्न

A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?


A 4 cm tall object is placed on the principal axis of a convex lens. The distance of the object from the optical centre of the lens is 12 cm and its sharp image is formed at a distance of 24 cm from it on a screen on the other side of the lens. If the object is now moved a little away from the lens, in which way (towards the lens or away from the lens) will he have to move the screen to get a sharp image of the object on it again? How will the magnification of the image be affected?


Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.


For what position of object, the image formed by a concave mirror is magnified and erect?


Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image. 


A point light source is kept in front of a convex mirror at a distance of 40 cm. The focal length of the mirror is 40 cm. Find the position of image. 


An object of height 2 cm is placed at a distance of 20 cm in front of a concave mirror of a focal length of 12 cm. Find the position, size, and nature of the image.


A person in front of a spherical mirror finds his image having a very small head, a fat body and legs of normal size. What are the shapes of three parts of the mirror?

In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.


Define the term Principle focus.


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