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Q. The phenomenon of change in direction of light when it passes from one medium to another is called
The phenomenon of change in direction of light when it passes from one medium to another is called refraction.
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Q. Ventilators are provided near the ceiling of the room because
Q. Natural commutation can be used in :
Q. The Hydraulic Break works on the principle of ________ .
Q. In our houses we get 220V ac. The value 220 represents
Q. Kilowatt is a unit to measure
Q. In hydel power station, the motion produced in turbines is due to
Q. What will happen if an object is dropped from a height and there is no air resistance?
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