What two properties of electromagnetic waves are used to attach info to radio signals?
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Define weight?
Does a soccer ball go faster in the air on a cold or hot day?
I observed this question to be asked in many exams - We cannot move even a finger without disturbing all the stars?Explain it.
why does a drop of water thrown into a hot frying pan jump around?
What is the velocity of light ?
Explain how do you separate hydrogen and oxygen gases in industrial electrolysis of water process?
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Explain about Barometer?
What forces support an airplane in flight?
Explain nuclear fission?
Order the following categories of electromagnetic radiation from the lowest frequency to the highest? Fm radio, uhf tv, am radio, microwaves
The gas that used in bulb is............? a) Oxygen b)nitrogen c)hydrogen d)co2