Answers

2015-01-20T19:11:25+05:30
Images formed by a concave mirror are: 
1.) For a real object very far away from the mirror, the real image is formed at the focus.
2.) For a real object close to the mirror but outside of the center of curvature, the real image is formed between C and f. The image is inverted and smaller than the object.
3.) For a real object at C, the real image is formed at C. The image is inverted and the same size as the object.
4.) For a real object between C and f, a real image is formed outside of C. The image is inverted and larger than the object.
5.) For a real object at f, no image is formed. The reflected rays are parallel and never converge.
6.) For a real object between f and the mirror, a virtual image is formed behind the mirror. The position of the image is found by tracing the reflected rays back behind the mirror to where they meet. The image is upright and larger than the object. 

Images formed by a convex mirror are:
The image is:
* located behind the convex mirror
* a virtual image
* an upright image
* reduced in size (i.e., smaller than the object)
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i am in9
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CBSE school
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2015-01-20T20:59:08+05:30
nature of images formed by a concave mirror:
1)when object is at infinity;
*image is real
*inverted
*highly diminished
*image is formed at the principle focus.
2)when image is in between infinity and centre of curvature:
*image is real.
*inverted
*diminished in size
*image is formed in between the centre of curvature and the principal focus.
3)when object is at centre of curvature:
*image is real.
*inverted.
*image is of the same size.
*image is formed at the centre of curvature.
4)when the object is in between focus and centre of curvature:
*image is real.
*inverted.
*enlarged.
*image is formed beyond the centre of curvature.
5)when the image is at principal focus;
*image is real.
*inverted
*highly enlarged
*image is formed at infinity.
6)when object is in between pole and principal focus;
*image is virtual
*erect
*enlarged.
*image is formed behind the concave mirror.
nature of images formed by a convex mirror:
1)when object is at infinity:
*image is virtual.
*erect
*highly diminished
*image is formed at the principal focus behind the convex mirror.
2)when object is any where between pole and infinity;
*image is virtual.
*erect
*diminished.
*image is formed between the principle focus and the pole behind the mirror.



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