A noise level of 100 decibel would correspond to
A. Just audible sound
B. Ordinary conversation
C. Sound from a noisy street
D. Noise from a machine shop
Answer: Option D
A. Just audible sound
B. Ordinary conversation
C. Sound from a noisy street
D. Noise from a machine shop
Answer: Option D
Which of the following substances will have the lowest speed of sound?
A. Water
B. Steel
C. Glasss
D. Air
What is the approximate range of sound for humans?
A. 20Hertz to 2000 Hertz
B. 20Hertz to 200Hertz
C. 20 Hertz to 20000 Hertz
D. 2 Hertz to 2000 Hertz
Loudness of sound depends upon which of the following?
A. Frequency
B. Wavelength
C. Amplitude
D. Overtones
A. On land
B. In air
C. In space
D. Underwater
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