If an incident pulse, moving towards a rigid support is as shown, then among the following pulse which one…

If an incident pulse, moving towards a rigid support is as shown, then among the following pulse which one represents the reflected pulse correctly? [BCECE (Mains) 2012] Includes an incident pulse shape moving towards a fixed boundary wall, and options (a)-(d) show different reflected pulses moving in the opposite direction.
  1. Graph (a)
  2. Graph (b)
  3. Graph (c)
  4. Graph (d)

Solution

When pulse is reflected from a rigid support, the pulse is inverted both lengthwise and sidewise.

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