Physics · Sound
An echo is produced when sound waves are reflected from _______.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1a vacuum
- 2a smooth and rigid surface✓
- 3a soft and porous surface
- 4an absorbing surface
Correct answer
a smooth and rigid surface
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Sound MCQs →Want more practice questions on Sound?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Sound