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Concave and convex lenses (view source)
Revision as of 18:35, 10 September 2015
, 18:35, 10 September 2015no edit summary
__FORCETOC__
__FORCETOC__
=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]]