Physics · Sound
To hear a distinct echo, the minimum time interval between the original sound and the reflected sound must be:
- 10.1 s✓
- 22 s
- 31 s
- 40.2 s
Correct answer
0.1 s
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!
Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
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