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From Karnataka Open Educational Resources
→Activity No # 1 - Simulation of double slit experiment
[[File:Wave_Interference.png|link=http://phet.colorado.edu/en/simulation/wave-interference]]
[[File:Wave_Interference.png|link=http://phet.colorado.edu/en/simulation/wave-interference]]
* '''Process (How to do the activity)'''
* '''Process (How to do the activity)'''
Launch the simulation from the [http://phet.colorado.edu/en/simulation/wave-interference PhET] website or download it and run. Discuss the simulation with the following questions.
#Launch the simulation from the [http://phet.colorado.edu/en/simulation/wave-interference PhET] website or download it and run. #Discuss the simulation with the following questions.
#Do the simulation with water and then light. You can do sound if students have been introduced to material waves and understand sound. It is better to do another simulation on wave propagation on sound before doing this simulation.
* '''Developmental Questions (What discussion questions)'''
* '''Developmental Questions (What discussion questions)'''
#Let us click on water here. When a drop of water drips in a bucket, what do you expect to see (waves move around)
#If two drops of water drip, what do you expect to see (the patterns the water make will intersect; this is called interference)
#Now let us do a similar thing with light
#What do you see now from the source of the light? (Light emanating)
#If I put one slit, what will I expect to see, according to the ray theory of light? (There will be a dark spot where the slit is but rest of the screen will have light)
#If I have two slits, what will I expect to see?
#What do we really observe? Why would this be?
#Talk about how waves propagate and what happens when there is interference?
* '''Evaluation (Questions for assessment of the child)'''
* '''Evaluation (Questions for assessment of the child)'''
* '''Question Corner'''
* '''Question Corner'''
