1000+ General Awareness Questions and Answers for SSC CGL Pdf - 1

Question: 1

The velocity of sound produced by a vibrating body varies

(A) Inversely as the frequency of the medium

(B) Directly as the square root of frequency of the medium

(C) Inversely as the density of the medium

(D) Directly as the square root of density of the medium

Question: 2

In a stationary wave along a string the strain is

(A) Maximum at anti nodes

(B) Maximum of nodes

(C) Constant every where

(D) Zero at nodes

Question: 3

Which of the following electromagnetic waves has the longest wavelength?

(A) Ultraviolet rays

(B) Light rays

(C) Gamma rays

(D) Infrared rays

Question: 4

Ultra violet light of sun’s radiation is prevented from reaching the earth’s atmosphere by the layer of

(A) Helium

(B) Ozone

(C) Hydrogen

(D) Oxygen

Question: 5

The wavelength of microwaves is

(A) Larger than the wavelength of red light

(B) Larger than the wavelength of radio waves

(C) Smaller than the wavelength of yellow light

(D) Smaller than the wavelength of violet light