Why does a cannon recoil after firing ?
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The energy obtained from atoms is known as.........
The antiparticle of an electron is
If a body is moving on a circular path, what is its average velocity if it completes one cycle in one second?
Which one of the following is the correct sequence of passage of light in a compound microscope?
In a _________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation
Where is a transistor most likely to be found ?
Which of the following cannot be used for making lenses?