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physics

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One end of a horizontal string is fixed to a
wall. A transverse wave pulse in the form of a
crest is generated at the other end and moves
toward the wall, as shown. Consider the pulse
after it has been reflected by the wall.
v
What is/are correct concerning the re-
flected pulse?
A) The reflected pulse forms a valley.
B) The reflected pulse has a greater speed
than that of the incident pulse.

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