10. A wave pulse on a string (sting 1) travels towards a boundary where it is co

Question

10. A wave pulse on a string (sting 1) travels towards a boundary where it is connected to a string (string 2) which is twice as long but has the same total mass, then the reflected pulse will be

(a) non-inverted

(b) inverted

(c) there won't be a reflected pulse in this scenario

(d) none of the preceding

11. Otis sitting on the dock of the bay notices a wave crest passes a pier about every 10 seconds. He estimates that each crest moves about 6 meters in a second. What is the aproximate wavelength of the ocean waves he is observing.

(a) 50 m

(b) 60 m

(c) 70 m

(d) 30 m

Explanation / Answer

10)
The material is less dense, so there won't be a reflected pulse in this scenario

11)
The horizontal distance between two adjacent crests is known as the wavelength.
As Each crest moves 6m in 1s
And crest passes a pier every 10 s,
Wavelength = 6 * 10 = 60 m

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