Explain the Sound ?
Explain about Gases ?
How spectral lines show discrete energy levels in an atom. : quantum physics
Explain the refraction of light ?
How does birds specially adopted to flight ?
Mention the applications of electron microscope. : quantum physics
write a program on link list to get information about graduated students?
Why a pen used for writing with ink is always split as its pointed end?
Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?
Explain the difference between a lens and a mirror?
Explain which way do twin screw props on a boat rotate when propelling the boat forward?
Explain the law of machines?
Explain the Wet and Dry Hygrometer ?