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प्रश्न
Draw a ray diagram to show the formation of image of an object placed at the centre of curvature of a concave mirror. State the position, size and nature of the image.
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उत्तर
Object placed at C :
A real, inverted image of the same size is formed at the centre of curvature
Image formed
A ‘B’ is at C the centre of curvature.
Size is equal to the size of object AB.
It is inverted and real.
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संबंधित 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.
Make labelled ray diagrams to illustrate the formation of:
a real image by a converging mirror.
between its pole and focus
Describe the nature, size and position of the image formed in each case.
State one use of concave mirror bases on the formation of image as in case (i) above.
The focal length of a small concave mirror is 2.5 cm. In order to use this concave mirror as a dentist's mirror, the distance of tooth from the mirror should be:
(a) 2.5 cm
(b) 1.5 cm
(c) 4.5 cm
(d) 3.5 cm
The image formed by a concave mirror is of the same size as the object, if the object is placed
A student has to determine the focal length of a concave mirror by obtaining the image of a distant object on a screen. For getting best result he should focus
(A) a distant tree or an electric pole
(B) a well-illuminated distant building
(C) well-lit grills of the nearest window
(D) a burning candle laced at the distant edge of the laboratory table
The image formed by concave mirror is real, inverted and of the same size as that of the object. The position of object should be ______.
Under which of the following conditions a concave mirror can form an image larger than the actual object?
Identify the device used as a spherical mirror or lens in following case, when the image formed is virtual and erect in case.
Object is placed between device and its focus, image formed is enlarged and behind it.
The ENT doctor uses a ______.
