TNPSC General Knowledge Study Materials, Notes in English - 1

Question: 1

Electromagnetic theory could not explain

(A) Polarisation

(B) Diffraction

(C) Photoelectric effect

(D) Interference

Question: 2

_____ are used in obtaining electrical energy from sunlight during space travel.

(A) Photoelectric cells

(B) Lechlanche cells

(C) Dry cells

(D) Solar cells

Question: 3

____ deals with objects and systems, which are either moving at a constant speed with respect to one another or at the rest.

(A) Millikan's theory

(B) Thomson's theory

(C) Special theory of relativity

(D) Bohr's theory

Question: 4

An instrument to magnify small objects is

(A) Electron microscope

(B) Radio telescope

(C) Bragg's spectrometer

(D) None of the above

Question: 5

_____ cannot be focused using lenses.

(A) Visible light

(B) Infra-red rays

(C) Sunlight

(D) X-rays