Presentation is loading. Please wait.

Presentation is loading. Please wait.

Things to Learn Concave mirrors and convex mirrors Construction rules for curved mirrors Formation of images Uses of curved mirrors.

Similar presentations


Presentation on theme: "Things to Learn Concave mirrors and convex mirrors Construction rules for curved mirrors Formation of images Uses of curved mirrors."— Presentation transcript:

1

2

3 Things to Learn Concave mirrors and convex mirrors Construction rules for curved mirrors Formation of images Uses of curved mirrors

4 Concave Mirrors C Center of Curvature R Radius of Curvature F FocusPole P Focal Length(FP) = R/2 Shiny Surface

5 Convex Mirrors CF Focal Length(FP) = R/2 Center of Curvature R Radius of Curvature Focus P Pole Shiny Surface

6

7 (I) Concave Mirror FC 1.

8 FC 2.

9 FC 3.

10 (II) Convex Mirror FC 1.

11 FC 2.

12 3. FC

13

14 Activities #1 Hold a concave mirror about 10cm away from you. Observe your image. The image formed is magnified and erect.

15 Activities #2 Now ask your partner to hold the mirror and slowly walk away. Observe the change of the image. The image becomes diminished and inverted.

16 Conclusion The nature of image depends on the position of object.

17 (1) Object behind C FC Image: Between C and F Nature: Inverted, diminished, real.

18 FC Image: At C Nature: Inverted, same size as the object, real. (2) Object at C Try yourself !

19 FC Image: Behind C Nature: Inverted, magnified, real. (3) Object between C and F Try yourself !

20 (4) Object at F F Image: At infinity C Parallel beam Try yourself !

21 (5) Object between F and the mirror Image: Behind the mirror Nature: Erect, magnified, virtual. FC Try yourself !

22 Convex Mirror FC Image:Behind the mirror Nature: Erect, diminished, virtual.

23

24 Concave Mirrors 1. Shaving Mirrors / Make-up mirrors Image of the face is magnified

25 Concave Mirrors 2. Reflectors

26 Concave Mirrors 3. Reflecting telescope

27 Convex Mirrors 1. Rear-view Driving Mirror It gives a wider view than plane mirror.

28 Convex Mirrors 2. Surveillance Mirrors

29


Download ppt "Things to Learn Concave mirrors and convex mirrors Construction rules for curved mirrors Formation of images Uses of curved mirrors."

Similar presentations


Ads by Google