Physics Review Question Unit: waves Year: 1993 Question#: 44 Question: The distance between successive antinodes in the standing wave pattern shown below is equal to: (1 ) 1 wavelength (2 ) 2 wavelengths (3 ) 1/2 wavelength (4 ) 1/3 wavelength What is this question really asking? Explanation by: Lindsay K [ Return to question menu ] Answer 1 1) 1 wavelength INCORRECT Successive antinodes would be from the peak or trough of wave to the peak or trough of the other wave. Remember one complete sin wave or cosine wave is one wavelength. You see the distance between the successive antinodes is 1/2 a wavelength, not 1 wavelength. So 1 wavelength is not the correct answer. return to top Answer 2 2) 2 wavelengths INCORRECT Successive antinodes would be from the peak or trough of wave to the peak or trough of the other wave. Remember one complete sin wave or cosine wave is one wavelength. You see the distance between the successive antinodes is 1/2 a wavelength, not 2 wavelengths. So 2 wavelengths is not the correct answer. return to top Answer 3 3) 1/2 wavelength CORRECT Successive antinodes would be from the peak or trough of wave to the peak or trough of the other wave. Remember one complete sin wave or cosine wave is one wavelength. You see the distance between the successive antinodes is 1/2 a wavelength, so this would be the correct answer. return to top Answer 4 4) 1/3 wavelength INCORRECT Successive antinodes would be from the peak or trough of wave to the peak or trough of the other wave. Remember one complete sin wave or cosine wave is one wavelength. You see the distance between the successive antinodes is 1/2 a wavelength, not 1/3 wavelength. So 1/3 wavelength is not the correct answer. return to top What's this question really asking? What are antinodes and can you recognize one wavelength. return to top |
[Home] [Lessons] [Review] [Search] [Links]
This web site is designed and maintained by Science Joy Wagon and may
not be reproduced or redistributed without written permission from Science Joy Wagon. |