Delhi Police Constable 22 Nov 2023 Shift 1 Paper

Section: General Knowledge/Current Affairs

© examsiri.com

Question : 30 of 100

Marks: +1, -0

Identify the correct statement :

Frequency is expressed in decibel (dB)
1 hertz is one oscillation per second
Amplitude is expressed in hertz (Hz)/sec
1 decibel is 100 vibrations per second

Go to Question:

Prev Question

Next Question