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Methodical recommendation:
Theory
| Number | Name | Description |
|---|---|---|
| 1. | Lens | This theory explains about lens, its types and uses in daily life. |
| 2. | Converging nature of lens | To know about the power of converging light rays using a convex lens. |
| 3. | Convex lens | This theory explains in detail about the image formation in convex lens and its uses. |
| 4. | Concave lens | This theory explains in detail about the image formation in concave lens and its uses. |
| 5. | Rainbow | This theory explains about the formation of rainbows by the splitting of white light. |
| 6. | Dispersion | To clearly explain about the process of dispersion with Newton's disc. |
Practice Questions
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Colours of rainbow | 1st type - receptive | easy | 2 m. | To familiarize with the colours present in the rainbow. |
| 2. | Sunlight | 1st type - receptive | easy | 2 m. | To understand about the sunlight and the colours present in it. |
| 3. | Nature of lens | 2nd type - interpretation | medium | 5 m. | To get familiarize with the concept of the lens, its types and its characteristics. |
| 4. | Images based on the lens | 2nd type - interpretation | easy | 3 m. | To know about the various uses of concave and convex lens in real life. |
| 5. | Images by a lens | 1st type - receptive | medium | 4 m. | To analyse the statements about light and image formation by lenses. |
| 6. | Formation of rainbow | 3rd type - analysis | medium | 4 m. | To analyse and apply the concepts of reflection and dispersion. |
| 7. | Splitting of light | 2nd type - interpretation | hard | 6 m. | To apply the concept of dispersion and rainbow formation. |
| 8. | Real and magnified images | 2nd type - interpretation | medium | 4 m. | To get familiarize with the types of images - real or inverted and magnified or diminished on looking at the images. |
| 9. | Prism | 2nd type - interpretation | medium | 4 m. | To apply the general informations learnt about the process of dispersion. |
| 10. | Spectrum of light | 2nd type - interpretation | medium | 4 m. | To know about the prism and the band of colours in dispersion. |
Questions for Teacher Use
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Image formation by lens | Other | hard | 10 m. | To apply the steps of the experiments showing that the formation of images by concave and convex lens. |
| 2. | Uses of lenses | Other | hard | 8 m. | To apply the concept of lenses, image formation and its application. |
| 3. | Newton's disc | Other | hard | 10 m. | A fun activity to make a Newton's disc using simple things at home. |
Tests
| Number | Name | Recomended time: | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Training test 1 | 00:15:00 | easy | 9 m. | To get trained on the basics of lens and its nature with the help of natural light source. |
Periodic assessments
| Number | Name | Recomended time: | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Homework 1 | 00:20:00 | medium | 13 m. | To get familiarize with the concept of dispersion and the formation of images in concave and convex lens. |
| 2. | Homework 2 | 00:20:00 | medium | 10 m. | A fun activity to show the splitting of white light from the Sun into the seven constituent colours with the helpf of Newton's disc. |
| 3. | Progress test 1 | 00:20:00 | medium | 18 m. | To check the progress on the concepts of formation of real and inverted images using the lenses along with the rainbow formation. |
| 4. | Progress test 2 | 00:20:00 | medium | 16 m. | To check your understanding on the concept of splitting of light by a prism. |
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