5th Class Punjab Board Exams Quizzes MCQs Quizzes Punjab Board 5th Class Science Lesson No 7 Online Test MCQs

Question:
If a wall lies at a distance of 17 meter then sound is reflected. This sound is called:

Option A):
Reverberation
Option B):
Reflection
Option C):
Echo
Option D):
Vibration

Correct Answer is Option C):
Echo