E-PolyLearning

581. Rutherford discovered
a. Electron
b. Proton
c. Neutron
d. Nucleus
View Answer Report Discuss 50-50!
Answer: (d).Nucleus

582. In the absence of magnetic field all energy levels have
a. Same energy values
b. Different energy values
c. Constant energy values
d. No energy values
View Answer Report Discuss 50-50!
Answer: (a).Same energy values

583. In the ground state of an atom, the electron is present
a. In the nucleus
b. Close to the nucleus
c. In the second shell
d. Away from the nucleus
View Answer Report Discuss 50-50!
Answer: (b).Close to the nucleus

584. The canal Rays were proposed by
a. Goldstein
b. Dalton
c. J.J. Thomson
d. Millikan
View Answer Report Discuss 50-50!
Answer: (a).Goldstein

585. Stoney proposed the name of
a. Electron
b. Proton
c. Neutron
d. Positron
View Answer Report Discuss 50-50!
Answer: (a).Electron