What is the wavelength of sound in air?
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Why are the mountains colder than the plains ?
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Explain application of optical fibers and sensors?
How is nuclear fission different from nuclear fusion?
Explain planck’s hypothesis? : quantum physics
Why does a heavy stone nor break a glass place when place slowly on it, while a small stone falling from a great height easily breaks it ?
What is the homogenous?
Why gave we to put back the clock continually, when we travel round the world west-wards ?
What is soft water?
explain Tides
Explain about Sanitation
So the essence of quantum physics is that everything has a quanta? : quantum physics