Difference between revisions of "Concave and convex lenses"
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=Activity No # 1 - '''Name of Activity'''= | =Activity No # 1 - '''Name of Activity'''= | ||
| + | Refraction of Light in Concave and Convex Lenses | ||
==Estimated Time== | ==Estimated Time== | ||
| − | + | 5 mins | |
==Materials/ Resources needed== | ==Materials/ Resources needed== | ||
| + | Concave and Convex Lenses | ||
| + | Torch Light, Comb. | ||
==Prerequisites/Instructions, if any== | ==Prerequisites/Instructions, if any== | ||
==Multimedia resources== | ==Multimedia resources== | ||
| + | [[File:12.png|400px]][[File:13.png|400px]] | ||
| + | |||
==Website interactives/ links/ simulations== | ==Website interactives/ links/ simulations== | ||
| + | https://www.youtube.com/watch?v=JJHAJlKLEf0 | ||
| + | |||
==Process (How to do the activity)== | ==Process (How to do the activity)== | ||
| + | Take a Convex Lense and place it before a thick book which has a dark background.Keep a Comb in front the Lense.Now pass the light using the torch through the lense.Observe the path of the light rays. They converge at a point. | ||
| + | |||
| + | Now replace the convex lense with the concave lense and continue the procedure and obseve the path of the light rays. They appear as diverging from a point | ||
==Developmental Questions (What discussion questions)== | ==Developmental Questions (What discussion questions)== | ||
| + | #Name the types of Lenses | ||
| + | #What happens when light rays pass through the glass ? | ||
| + | |||
==Evaluation (Questions for assessment of the child)== | ==Evaluation (Questions for assessment of the child)== | ||
| + | #Which lense converges the light rays? | ||
| + | #Which lense diverges the light rays? | ||
==Question Corner== | ==Question Corner== | ||
| + | List out the uses of Convex and Concave Lenses in our daily life | ||
| + | |||
'''To link back to the topic page''' | '''To link back to the topic page''' | ||
[http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back] | [http://karnatakaeducation.org.in/KOER/en/index.php/'''Give the link of the page name from where activity was given''' Back] | ||
| + | [[File:11.jpg|400px]] | ||
Revision as of 18:35, 10 September 2015
Activity No # 1 - Name of Activity
Refraction of Light in Concave and Convex Lenses
Estimated Time
5 mins
Materials/ Resources needed
Concave and Convex Lenses Torch Light, Comb.
Prerequisites/Instructions, if any
Multimedia resources
Website interactives/ links/ simulations
https://www.youtube.com/watch?v=JJHAJlKLEf0
Process (How to do the activity)
Take a Convex Lense and place it before a thick book which has a dark background.Keep a Comb in front the Lense.Now pass the light using the torch through the lense.Observe the path of the light rays. They converge at a point.
Now replace the convex lense with the concave lense and continue the procedure and obseve the path of the light rays. They appear as diverging from a point
Developmental Questions (What discussion questions)
- Name the types of Lenses
- What happens when light rays pass through the glass ?
Evaluation (Questions for assessment of the child)
- Which lense converges the light rays?
- Which lense diverges the light rays?
Question Corner
List out the uses of Convex and Concave Lenses in our daily life
To link back to the topic page
Give the link of the page name from where activity was given Back
