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

Question: 1

The study of electric discharge through gases gives valuable information regarding the structure of ___

(A) Molecules

(B) Atom’s

(C) Nucleus of an atom

(D) Molecules and atoms

Question: 2

According to Rutherford atom model, the spectral lines emitted by an atom is ___

(A) Band spectrum

(B) Continuous absorption spectrum

(C) Continuous spectrum

(D) Line spectrum

Question: 3

Cathode rays are ___

(A) Protons

(B) Neutrons

(C) Positrons

(D) Electrons

Question: 4

Charge per unit mass measures ___ of the particle.

(A) Charge density

(B) Specific mass

(C) Specific charge

(D) Specific density

Question: 5

The magnetic Lorentz force experienced by the electron in the magnetic field is ____

(A) Mev

(B) Ee

(C) Bev

(D) B2v