What is wave length?
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Which expands to the greatest, when heated : silids, liquids or gases ?
State beer-lambert’s law.
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
Why dies the water boil below 100 o C on the top of a mountain ?
Why graphite rod is used in nuclear reactor?
How are the waters classified based on the degree of hardness?
Why does milk turn sour ?
Why does a freely suspended magnetic needle always point North and South ?
Why is alum added to purify water ?
Define Atom ?
which gas is used in preaparation of bit salt
What variety of carbon is used for refining purposes ?