What is the commercial unit of electric power
Why is it possible to see the face through a glass, ehen it is polished from on side ?
What is Amorphous ?
What is soda water ?
why copper is a bad conducter at low temperature?
Explain heat treatment. Why and how is it done?
what are the Newtons principles? what is mean by gravitational force? what is mean by space technology? what is the use in space technology?
Why dies a boat-man push the bank with an oar, when he wants to clear his boat off the bank?
Explain the Light ?
What is supersonic?
Why gave we to put back the clock continually, when we travel round the world west-wards ?
It is easier to knock a man down when he is standing on one leg than when he stands on two legs. Why ?
Explain the cause of brownian motion?