Which of the following acoustic devices is designed to concentrate and project sound in one direction (used by cheerlead...

Type: MCQ • Marks: 1

Which of the following acoustic devices is designed to concentrate and project sound in one direction (used by cheerleaders or in megaphone horns)?

A. Stethoscope

B. Cochlea

C. Microphone

D. Megaphone

Explanation

A megaphone prevents spherical sound spreading, channeling acoustic energy forward.

Want to attempt the full test series with a timer and instant score? Purchase the package to unlock the complete test. Purchase Now

Class 9th Science (MCQ)

This page is indexed for search so students can find questions directly from Google.

Welcome to TutorWale!