हिंदी

We can obtain a real, enlarged and inverted image by a concave mirror. - Science

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प्रश्न

We can obtain a real, enlarged and inverted image by a concave mirror.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

This statement is True.

Explanation:

  • When an object is placed between the focal point and the centre of curvature of a concave mirror, it can produce a real, enlarged, and inverted image.
  • This happens because the reflected rays converge to form the image in front of the mirror.
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अध्याय 15: Light - Exercises [पृष्ठ १८९]

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एनसीईआरटी Science [English] Class 7
अध्याय 15 Light
Exercises | Q 2.3 | पृष्ठ १८९

संबंधित प्रश्न

Define the following term in the context of spherical mirrors:- Pole


Explain the following term related to spherical lenses:- principal axis


When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper. 

 Why is a hole burnt in the carbon paper? 


Write true or false 

A virtual image formed by a spherical mirror is always erect and situated behind the mirror.


Distinguish between real and virtual images.

An object 5 cm in height is placed at a distance of 30 m in front of a concave mirror of focal length 40 cm. By scale, drawing finds the nature, size, position, and magnification of the image.

The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?


Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of its size. At what distance the object has been placed from the mirror? What is the nature of the image and the mirror?


A spherical mirror whose reflecting surface is curved outwards is called ______ mirror.


What is “aperture”?


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