Image formation

Image formation

Image
1. Real
2. Virtual
Spherical mirrors
1. Concave
  1. B/w f & p
    1. Behind mirror
      1. Enlarged
        Virtual & erect
  2. Beyond C
    1. B/w C & f
      1. Diminished
        R & I
  3. At infinity
    1. f
      1. Point sized
        Real & inverted
  4. At C
    1. At C
      1. Same size
        R & I
  5. At f
    1. At infinity
      1. Highly enlarged
        R & I
  6. B/w C & f
    1. Beyond C
      1. Enlarged
        R & I
2. Convex
  1. At infinity
    1. At f
      1. Highly Diminished
        V & E
  2. B/w infinity & P
    1. B/w P & f
      1. Diminished
        V & E
3. Pole
4. Centre of curvature
5. Radius of curvature
  1. R=2f
6. Principal axis
7. Aperture
8. Focus
9. Focal length
  1. R =2f
10. Focal plane
11. 1/u +1/v = 1/f
12. Linear Magnification
  1. m=h’/h
  2. m= -v/u
    1. m=h’/h
  3. -ve : R&I +ve : V&E
  4. <1: diminished >1: enlarged
1.ray travelling parallel to principal axis will pass through focus after reflection and vice-versa. 2. A ray passing through centre of centre of curvature after reflection is reflected back along the same path. 3.<i=<r

Resource summary

	Created by Tanisha Gupta almost 7 years ago