A standing wave is a/an a) wave traveling with very nearly 0 velocity. b) wave t

Question

A standing wave is a/an a) wave traveling with very nearly 0 velocity. b) wave traveling with 0 velocity. c) wave with no reflection. d) interference pattern made of two waves moving in opposite directions e) wave that does not reverse phase upon reflection. Mr. Carron shakes a 5 m long slinky held at both ends, producing standing waves. Which of the following wavelengths would fail to produce a standing wave? a) 3.3 m b)10m c) 5 m d)20m e) 2.5 m Just before the collapse of the Tacoma Narrows Bridge, people could see standing waves in the structure of the bridge. The place where the bridge connected to the towers didn't move, of course, but there was one point in the center that didn't move, as well. This point on a standing wave is called a) a node b) an anti-node c) a crest d) the null

Explanation / Answer

1) correct option is (d)

2) L = 5 m

lamda = 2L = 2*5 = 10 m

3) correct option is (b)

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