Wave patterns that do not travel along the medium are called:
AStandard waves
BStranded waves
CStartled waves
DStanding waves
Answer & Solution
Correct answer: D. Standing waves
1. Two identical waves travelling opposite ways produce a fixed pattern.
2. The pattern stays where it is instead of moving on.
3. Such wave patterns are called standing waves or stationary waves.
4. So the answer is standing waves.
_Source: NCERT Class XI Physics Part II, Ch 14 'Waves'_
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