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for LIVE teaching-4.0-qualitative description of image formed by lens.pptx
- 2. FORCE, MOTION AND ENERGY Quarter2 Week 4 Code: S10FE-2g-50 Code: S10FE-2h-52
- 3. LIGHT: MIRROR AND LENS Refractionof Light in Lens Optical Instruments
- 4. CONTENT STANDARD The learnersdemonstrate an understanding of the image(s) formed by the different types of mirrors and lenses.
- 5. LEARNING COMPETENCY Predict thequalitative characteristics (orientation, type and magnification) of images formed by the plane and curved mirrors and lenses
- 6. LEARNING COMPETENCY Identify waysin which the properties of mirrors and lenses determine their use in optical instruments (e.g. camera and binoculars)
- 7. Let’s compare! CONVEX CONCAVE PRODUCE IMAGE L O S T L O S T VARY INVERTED SMALLER THAT THEOBJECT REAL IMAGE VARY UPRIGHT/ERECT SMALLER/BIGGER VIRTUAL IMAGE FOLLOWS REFLECTION RAY DIAGRAM
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- 9. LENS A transparent materialmade of glass or plastic that refracts and focuses light rays at a point Convex Lens or Converging Lens Concave Lens or Diverging Lens
- 10. REFRACTION -is the bendingof light rays when passing obliquely from one medium to another.
- 11. REFRACTION -is the bendingof light rays when passing obliquely from one medium to another.
- 12. CONVEX LENS It isthicker in the center than edges It forms real and virtual images depending on the position of the object It is also called Converging Lens because the light that passes through tends to converge at a particular point called focus
- 13. CONCAVE LENS It isthicker at the edge and thinner in the center It forms upright and reduced image It is also called Diverging Lens because the light that passes through tends to diverge at focal point
- 14. RAY DIAGRAMMING F V Vertex PrincipalAxis Focus Convex Lens F Focus
- 15. Describing the IMAGE formed L O S T -Location of the image - Orientation of the image Inverted or Upright - Size of the image smaller, enlarged, diminish - Type of the image Virtual / Real
- 16. RAY DIAGRAMMING- ConvexLens F V F object Principal Rays a.P-F ray. A ray of light parallel to the principal axis, is refracted passing through the focus. b.F-P ray. A ray of light passing through the focus (F) in front of the lens is refracted parallel to the principal axis c. V ray. A ray of light passing through the vertex continue to travel on same direction image L O S T Beyond the Focus Inverted Bigger than the object Real image
- 17. RAY DIAGRAMMING- ConcaveLens F V F object Principal Rays a.P-F ray. A ray of light parallel to the principal axis, is refracted passing through the focus in front of lens. b.F-P ray. A ray of light passing through the focus (F) behind the lens is refracted parallel to the principal axis c. V ray. A ray of light passing through the vertex continue to travel on same direction L O S T Between the focus and vertex Upright/ erect Smaller than the object Virtual image 2F 2F image
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- 33. Lets Test Understanding 9How will you describe an image formed in the microscope? a.virtual, upside-down and enlarged image b.Virtual, upright and smaller image c.Real, upside down and enlarge image d.Real, upright and smaller image
- 34. Lets Test Understanding 10Which of the following describes a convex lens? a.Also known as diverging lens b.It forms real and virtual image depending on the position c.It forms upright and reduced image d.It is thicker at the edge and thinner at the center
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- 37. He is thereason for the Season
- 38. PREPARED BY: Mr. RowelV. Engreso Science Teacher