What is the smallest size of plane mirror in which a man can
see his fill image length ?
Explain what is density?
Do radio-waves go in straight line ?
How many types of wave motions are there?
What is larger the force the earth exerts on you or the force you exert on the earth?
What path does an asteroid take?
What happens, when a magnet is floated on a big cork in a through of water ?
Define Nucleus?
What is centigrade thermometer ?
the time period of three pendulums are given in a sequence as a= 1.27s b=0.85s c=0.99s the given sequence may not be correct arrange the time period in a correct sequence
Explain the Fluorescence ?
What seven colors appear to be white when mixed together?
Explain the Hard water?