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Chapter 16 Waves I - PowerPoint PPT Presentation


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Chapter 16 Waves I In this chapter we will start the discussion on wave phenomena. We will study the following topics:

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slide1

Chapter 16

Waves I

In this chapter we will start the discussion on wave phenomena. We will study the following topics:

Types of waves Amplitude, phase, frequency, period, propagation speed of a wave Mechanical waves propagating along a stretched string Wave equation Principle of superposition of waves Wave interference Standing waves, resonance

(16–1)

slide25

a

a

n

n

n

n

a

(16–18)

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Reflections at a Boundary

  • Hard reflection : A pulse incident from the right is reflected at the left end of the string, which is tied to a wall. Note that the reflected pulse is inverted from the incident pulse
  • Soft reflection :Here the left end of the string is tied to a ring that can slide without friction up and down the rod. Now the pulse is not inverted by the reflection.
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A

B

A

B

A

B

(16–19)

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A

B

A

B

A

B

(16–20)