Jharkhand GK in English. We covered all the Jharkhand GK in English MCQs in this post for free so that you can practice well for the exam.
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Jharkhand GK Objective in English for Students
What type of wave is a light wave?
(a) Transverse wave
(b) Longitudinal wave
(c) Both of the above
(d) None of the above
Option a – Transverse wave
The wave theory of light was established by
(a) Newton
(b) Huygens
(c) Planck
(d) Faraday
Option b – Huygens
The phenomenon of light bending when passing through a transparent medium is known as
(a) Compton
(b) Maxwell
(c) Einstein
(d) Newton
Option c – Einstein
The incident of light returning after hitting a smooth surface is called
(a) Refraction of light
(b) Reflection of light
(c) Diffraction of light
(d) Scattering of light
Option c – Diffraction of light
The frequency of audio waves ranges from 20 Hz to
(a) 20,000 Hz
(b) 2,000 Hz
(c) 200 Hz
(d) None of these
Option a – 20,000 Hz
Sonar is mostly used
(a) By astronauts
(b) By doctors
(c) By engineers
(d) By navigators
Option d – By navigators
(a) Sound
(b) Population
(c) Psychology
(d) Currency circulation
Option a – Sound
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