Fill in the blank spaces with appropriate answers:
The shape of wavefront from a point source of light is ______.

Fill in the blanks spaces with appropriate answers. Amperer is defined from……….

Fill in the blanks spaces with appropriate answers. ………..currents attract.

Fill in the blanks spaces with appropriate answers. Unlike currents……….

Fill in the blank spaces with appropriate answers: The velocity of _________colour of light is maximum and _______ colour of light is minimum in glass.

Fill in the blank spaces with appropriate answer: An isolated magnetic pole ____ exists.

Fill in the blank spaces with appropriate answers: The S.I unit of permittivity is ______.

Fill in the blank spaces with appropriate answers: There are _______ types of charged bodies.

Fill in the blank spaces with appropriate answers: The angular dispersive psi = ________

Fill in the blanks spaces with appropriate answers: The ground state energy of the eletron in helium atom is ______ eV.