Question Detail

PHY 104 Wave and sound Objective Question
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Question

According to the text, what are longitudinal mechanical waves with frequencies below 20 Hz called?
Options
A Ultrasonic waves
B Supersonic waves
C Infrasonic waves
Correct Answer
D Hypersonic waves
Correct Answer

Option C is the correct answer.

Detailed Explanation

The 'Sound Waves' section on page 12 specifies: 'Longitudinal mechanical waves below 20 Hz are called infrasonic waves while those above 20,000 Hz are supersonic waves.'

Hint

Look for the definition of sound waves based on their frequency range in the 'Sound Waves' section.

Question Info

Course: PHY 104
Topic: Wave and sound
Type: Objective
Difficulty: Not specified
Question 342 of 947
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