What is the melting point of copper?
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What is master oscillator?
What is the velocity of light ?
Why does water boil at 100oC ?
what is the relative speed between 2 serial electrons running in same direction along the wire?
Why does a thick glass tumbler break, when ice is put in it ?
Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?
A rope-dancer holds wither an umbrella or a bamboo stick, while dancing on the rope. Why
Explain the index of refraction of air?
How is soda in a glass sucked up with the help of a straw ?
Explain the name for the physical constant with a value of 6.62 x 10-27 erg seconds?
Why mercury rises in a barometer ?
A burn from steam is more painful than that from boiling water. Why ?