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Described with the Help of a Diagram, the Nature, Size and Position of the Image Formed When an Object is Placed Beyond the Centre of Curvature of a Concave Mirror. - Science

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प्रश्न

Described with the help of a diagram, the nature, size and position of the image formed when an object is placed beyond the centre of curvature of a concave mirror.

उत्तर

The image formed by an object placed beyond the centre of curvature of a concave mirror is as follows: 

  

The above shows that the image formed by the concave mirror is

  1. between the focus and centre of curvature
  2. real and inverted
  3. smaller than the object (or diminished)
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अध्याय 4: Reflection of Light - Exercise 3 [पृष्ठ १८९]

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लखमीर सिंग Physics (Science) [English] Class 10
अध्याय 4 Reflection of Light
Exercise 3 | Q 15 | पृष्ठ १८९

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संबंधित प्रश्न

It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.

Will the image be smaller or larger than the object? Draw ray diagram to show the formation of image in this case.


ill in the following blank with suitable word:

 For a convex mirror, parallel rays of light appear to diverge from a point called the ......... .


Which kind of mirror is used in the headlights of a car? Why is it used for this purpose?


The image formed by a concave mirror is real, inverted and highly diminished (much smaller than the object). The object  must be:

(a) between pole and focus
(b) at focus
(c) at the centre of curvature
(d) at infinity


What is the position of the image when an object is placed at a distance of 20 cm from a concave mirror of focal length 20 cm? 


An object is placed at a distance of 10 cm from a concave mirror of focal length 20 cm. 


A student has focused the image of a candle flame on a white screen using a concave mirror. The situation is as given below:

Length of the flame = 1.5 cm

Focal length of the mirror = 12 cm

Distance of flame from the mirror = 18 cm

If the flame is perpendicular to the principal axis of the mirror, then calculate the following:

  1. Distance of the image from the mirror
  2. Length of the image

If the distance between the mirror and the flame is reduced to 10 cm, then what would be observed on the screen? Draw ray diagram to justify your answer for this situation.


To construct ray diagram we use two light rays which are so chosen that it is easy to know their directions after reflection from the mirror. List these two rays and state the path of these rays after reflection. Use these rays to locate the image of an object placed between centre of curvature and focus of a concave mirror.


An erect and enlarged image can be formed by


The concave reflecting surface of a torch got rusted. What effect would this have on the beam of light from the torch?


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