A. Balmer series
B. Pfund series
C. Bracket series
D. Lymann series
A. Semi-conductor becomes conductors
B. Ferromagnetic becomes paramagnetic
C. Paramagnetic becomes diamagnetic
D. Metals become super conductor
A. 4
B. 3
C. 2
D. None of these
A. Neutron
B. Proton
C. Electron
D. Positron
A. I = 2I∫Sin(πt/2)
B. I = 2I∫Sin(2πt)
C. I = 2ISinπt
D. I = I∫sin(2πt)
A. Through direct collision
B. Through electrostatic attraction
C. Through electrostatic repulsion
D. All of above
A. All accurately known and all doubtful digits
B. Only accurately known digits
C. Only doubtful digits
D. All accurately known digits and the first doubtful digit