The waveform of a certain signal can be studied by
A. Spectrometer
B. Cathode ray oscilloscope
C. P – n junction diode
D. Sonometer
Answer: Option D
Solution (By Examveda Team)
A spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Cathode ray oscilloscope is an electronic display device containing cathode-ray tube (CRT) that generates an electron beam that is used to produce visible patterns or graphs on a phosphorescent screen. A sonometer is an apparatus made of hollow box having two holes. A string is attached to it by which the transverse vibrations of strings can be studied.This Question Belongs to General Knowledge >> Physics
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