Please tell me about the type of image formed by concave and convex mirror and concave and convex lens in detail.(such as real ,magnified etc...)

Asked by yogeshmittal177 | 8th Oct, 2015, 05:56: PM

Expert Answer:

Image formed by a concave mirror:
 
1) When the object is at infinity:
 

Position of object

Position of image

Size of image

Nature of image

At infinity

At focus F

Highly diminished, point – sized

Real and inverted

 
2) When the object is placed beyond the centre of curvature of the mirror:
 

Position of object

Position of image

Size of image

Nature of image

Beyond Centre of curvature C

Between focus F and C

Diminished

Real and inverted

3) When the object is at the centre of curvature:
 

Position of object

Position of image

Size of image

Nature of image

At cenre of curvature C

At C

Same size

Real and inverted

4) When the object is placed between the centre of curvature and the focus:
 

Position of object

Position of image

Size of image

Nature of image

Between C and F

Beyond C

Enlarged

Real and inverted

5) When the object is placed at the focus:
 

Position of object

Position of image

Size of image

Nature of image

At focus F

At infinity

Highly enlarged

Real and inverted

6) When the object is placed between the focus and the pole of the mirror:
 

Position of object

Position of image

Size of image

Nature of image

Between F and P

Behind the mirror

Enlarged

Virtual and erect

 
NOTE: Kindly post the other three (convex mirror, convex lens and concave lens) as separate queries.

Answered by Romal Bhansali | 9th Oct, 2015, 11:42: AM