When a wave crest is incident upon a free end of a string, it returns as a ____

Question

When a wave crest is incident upon a free end of a string, it returns as a ____ (crest trough) after reflection; therefore, when a trough is incident upon a free end, it must return as a ______ (crest trough) after reflection. a. Crest, crest d. Trough, trough b. Crest, trough e. Unknown c. Trough, crest When a wave crest is incident upon a fixed end of a string, it returns as a _______ (crest trough) after reflection; therefore, when a trough is incident upon a free end, it must return as a _____ (crest trough) after reflection. a. Crest, crest d. Trough, trough b. Crest, trough e. Unknown c. Trough, crest

Explanation / Answer

1) b) crest, trough

2) c) Trough, crest

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