Chapter 10 Sounds Waves: Characteristics and Applications - Part 5

What is the function of a hearing aid?

Type: MCQ • Marks: 1
What is the function of a hearing aid?
Options
A. Amplifies sound for hearing-impaired people
B. Reduces all sound
C. Produces ultrasound
D. Measures pitch
Explanation
A hearing aid increases sound intensity for better hearing.
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Class 9th Science (MCQ)

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