Null vector is a vector which has________________?
If east, west, north, south, up and down are representing the direction of unit vectors, then east x south has the direction along_____________?
The direction of the vector product is given by______________?
I ^. (j^ x k^) is equal to______________?
For chain reaction to build up the size of the radioactive target should be______________?
One AMU is equal to__________________?
During fusion of hydrogen into helium________________?
In the nucleus of uranium, the number of neutrons will be _____________?
According to which one of following law the density of atom is uniform ?
Which one is not a type of dynamic equilibrium ?