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Unformatted text preview: Muraj, Hamza – Homework 36 – Due: May 1 2006, 4:00 am – Inst: Florin 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. 001 (part 1 of 1) 10 points The figure below shows a complex wave pat- tern on a string moving towards a rigid hook at the wall on the right. After some time, the wave is reflected from the wall. v Select the wave pattern for the reflected wave. 1. v 2. 3. v correct 4. v 5. v Explanation: Consider the wave pattern image reflected about the rigid hook on the wall. v v After the time it takes for the wave to be reflected from the wall, this image is the wave pattern traveling to the left along the string. Note: Reflection about a point (hook) is the same as reflection about the y-axis (wall) fol- lowed by reflection about the x-axis (string). The leading part of the wave must remain in front and the wave is flipped over. This is the first wave pattern of four possi- ble wave patterns presented by this question. 002 (part 1 of 1) 10 points An incident sine wave y i ( x,t ) = A sin( k x- ω t ) (1) travels to the right and is reflected off a fixed end of the string at x = L . Which of the following expression gives the correct formula for the reflected wave y r ( x,t )?...
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- Spring '09
- Sine wave, Muraj