A wave pulse on an extension cord is traveling towards a wall outlet where the cord is plugged in. Assuming that the plug stays in the socket, what happens when the pulse hits the outlet? Neglect gravity and frictional effects:
a. The pulse diappears.
b. The pulse is reflected backwards. The reflected pulse has the same shape and size as the original pulse, and also like the original pulse, it faces downwards.
c. The pulse is reflected backwards. The reflected pulse has the same shape and size as the original pulse, but it is inverted so that it faces upwards.
d. The pulse is reflected backwards. The reflected pulse faces downwards, but its amplitude is smaller than the original pulse.

Question

19-07-2024
Physics

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A wave pulse on an extension cord is traveling towards a wall outlet where the cord is plugged in. Assuming that the plug stays in the socket, what happens when the pulse hits the outlet? Neglect gravity and frictional effects:
a. The pulse diappears.
b. The pulse is reflected backwards. The reflected pulse has the same shape and size as the original pulse, and also like the original pulse, it faces downwards.
c. The pulse is reflected backwards. The reflected pulse has the same shape and size as the original pulse, but it is inverted so that it faces upwards.
d. The pulse is reflected backwards. The reflected pulse faces downwards, but its amplitude is smaller than the original pulse.

Sagot :

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