Explain refraction?
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How ate the weather forecasts made ?
Explain what is time?
what is the mean of g= 9.8m/s2. waht is the mean of unit m/s2
Explain reflection of light?
What is the principle on which sitar and violin are based?
What is the effeciency of solar cell (Current year)
What is the commercial unit of electric power
Which of the surfaces of a thermos flask are silvered and why?
explanation about cdma and is working process
Why are the mountains colder than the plains ?
Explain when are intermolecular forces the strongest?
What does the acronym am stands in radio transmission?