How can light be defined in simplest form?
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Explain how do you separate hydrogen and oxygen gases in industrial electrolysis of water process?
Why is it easier to swim in sea water than in the river water?
pressure is greater at the time of walking or standing when ?
Why does a water pump becomes ineffective, when water ha to be raised through a height grater than 30 ft. ?
Explain the Fluorescence ?
Explain the working of basic rubber ink filler
How we are getting light from electrical bulb.Please brief in detail.
Explain about Hydraulic brakes?
is a burning candle a undergoing a physicalchange
If the moons orbit is inclined slightly relative to the earths orbit what effect does this have on eclipses?
In Einstein's mass energy relation E=mc2 why velocity of light is used and never ordinary velocities?what is the exact explanation?
our breath can produce current?