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Developed by:
Master Santosh , ABC School, Ranchi

Materials:-
1.Rubber bands
2.cardboards

Some More Details About Our Products.:-
This activity works when we stretch the rubber band
then it will jump and make a sound.
10. Multiple reflections of light.

Materials:-
CD Or DVD
More details about this:-

Dispersion is the phenomenon in which the phase velocity a wave depends on its frequency. Media having this common property may be termed dispersive…