TNPSC Group 1, 2 Physics Online Mock Test in English and Tamil - 2

Question: 6

Who suggested that electrons are revolving around the nucleus in circular orbits?

(A) Sommerfeld

(B) Rutherford

(C) Prout

(D) J.J. Thomson

Question: 7

Who suggested that all elements are made up of atoms of hydrogen?

(A) Rutherford

(B) J.J. Thomson

(C) Prout

(D) Dalton

Question: 8

_____ are used as MASER materials.

(A) Diamagnetic ions

(B) Ferromagnetic ions

(C) Paramagnetic ions

(D) All the above

Question: 9

Dalton showed that the matter is made up of extremely small particles called ____

(A) Atoms

(B) Quarks

(C) Nuclei

(D) Molecules

Question: 10

____ quantum number is useful in finding the possible elliptical orbits.

(A) Spin

(B) Magnetic

(C) Orbital

(D) Principle