Image formation by mirrors ppt class 10

Class 10 - Chapter Light
Image formation in concave and convex mirrors
Examples, uses and all image of concave and convex mirror

1. Image formation By Mirrors

2. Contents Mirrors - Concave - Convex

3. mirror s CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE CoNcAvE Concave Concave Concave Concave Concave Concave Concave Concave CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CONCAVE CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx CoNvEx concave concave concave concave concave concave concave concave CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX CONVEX

4. A surface capable of reflecting sufficient undiffused light to form an image of an object placed in front of it. Also called looking glass. Definition Mirror Concave Mirror Convex Mirror Plane Mirror

5. Concave Mirror Parts of Concave Mirror Concave Mirror in Daily Life Properties of Concave Mirror’s Image Specific Lights of Concave Mirror Formula

6. Parts of Concave Mirror Concave Mirror O Cutting point of the main axis to the concave mirror Center point of the mirror curvature Focal point of the mirror Main/Principal Axis Radius of the mirror curvature Focal length of the mirror P F f R 1 2 3 4 - Object is located between point O and F , in room 1 Object is located between point F and P , in room 2 Object is located before point P , in room 3 Object is located after point O , in room 4

7. A concave mirror has a property of collecting the light (convergent ). Convex mirror also has three specific properties as follow : 1. If the incident ray paralleled to the principal axis, it will reflected as if it from the focal point (F). 2. If the incident ray passed through the focal point (F), it will reflected parallel to the principal axis. 3. If the incident ray passed through the curvature center point (P), it will reflected as if it from the curvature center point (P). F P Specific Lights of Concave Mirror

8. Concave Mirror and It’s Image Object h h = The height of the object to the principal axis S h’ S’ S = The distance between the Object to the mirror h’ = The height of the image to the principal axis S’ = The distance between the image to the mirror The properties of the image formed if the object is located in room 3 are: Real Upside down Smaller than object Located in room 2 Image

9. Concave Mirror and It’s Image Object The properties of the image formed if the object is located at the center point P are : Real As big as the object Upside down Located at the center point P Image

10. Concave Mirror and It’s Image Object The properties of the image formed if the object is located in room 2 are : Real Upside down Bigger than the object Located in room 3 Image

11. Concave Mirror and It’s Image Object If the object is located at the center of point F, there will no image formed

12. Concave Mirror and It’s Image Object The properties of the image formed if the object is located in room 2 are: real upside down bigger than the object located in room3 Image The number of room where object is + The number of room where image is = 5

13. Example of Concave Mirror in daily life P ersonal embellishment As light reflector in spotlight As center micro wave signal from satelit e to parabola As a collector light in teleskop and microscope

14. Convex Mirror Parts of Convex Mirror Convex Mirror in Daily Life Properties of Convex Mirror’s Image Specific Lights of Convex Mirror Formula

15. Convex Mirror's Parts Convex Mirror O Cutting point of the main axis to the convex mirror P Center point of the mirror curvature F Focal point of the mirror Main/Principal Axis R Radius of the mirror curvature f Focal length of the mirror

16. A convex mirror has a property of diverging light (divergent). Convex mirror also has three specific properties as follow : 1. If the incident ray paralleled to the principal axis, it will reflected as if it from the focal point (F). P 2. If the incident ray passed through the focal point (F), it will reflected parallel to the principal axis. 3. If the incident ray passed through the curvature center point (P), it will reflected as if it from the curvature center point (P). F Convex Mirror's Properties

17. Convex Mirror and It's Image P F S S’ Object Image = The distance of the object to the mirror = The distance of the image to the mirror S S’ h h = The height of the object to the principal axis h’ = The height of the image to the principal axis h’ The properties of the image formed are: virtual upright smaller than object.

18. in spoon in a rearview mirror in a mirror in three junction Example of Convex Mirror

19. Formula 1 1 1 f u v = + 1 2 f R = M h’ h = = an absolute sign that states the value of M always positive M = Magnification of the image In the calculation run appointments as follows: 1. For a concave mirror: f and R is positive (+). If S’ is negative ( - ), then the image formed is virtual 2. For a convex mirror: f and R is negative ( - )

20. Prepared By SHAILENDRA SOLANKI

21. THE END