TNPSC Atomic Nuclear Physics Objective Questions Answers - 2

Question: 6

According to Bohr’s postulates, which of the following quantities take discrete values?

(A) Angular momentum

(B) Momentum

(C) Potential energy

(D) Kinetic energy

Question: 7

Electrons were discovered by ____

(A) Sommerfeld

(B) Neil Bohr

(C) Rutherford

(D) J.J. Thomson

Question: 8

Goldstein used a ___ to obtain canal rays.

(A) Insulated anode

(B) Perforated cathode

(C) Insulated cathode

(D) Perforated anode

Question: 9

The mass of each positive ion in the discharge tube is equal to the mass of the ___

(A) Atom

(B) Molecule

(C) Neutron

(D) Proton

Question: 10

The terminal velocity of the oil drop in Millikan’s experiment is found using ____

(A) Speedometer

(B) Telescope

(C) Microscope

(D) Metre scale