Bats can sense obstacles because they produce
A. supersonic sound waves
B. ultrasonic sound waves
C. infrasonic sound waves
D. micro sound waves
Answer: Option B
A. supersonic sound waves
B. ultrasonic sound waves
C. infrasonic sound waves
D. micro sound waves
Answer: Option B
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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