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Subtopic: Standing Waves |
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In a stationary wave along a string, the strain is:
1. zero at the antinodes
2. maximum at the antinodes
3. zero at the nodes
4. maximum at the nodes
Subtopic: Standing Waves |
Level 3: 35%-60%
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The equation of a standing wave in a string is \(y = (200~\text{m})\sin\left(\frac{2\pi}{50}x\right)\cos\left(\frac{2\pi}{0.01}t\right)\) where \(x\) is in metres and \(t\) is in seconds. At the position of antinode, how many times does the distance of a string particle become \(200~\text{m}\) from its mean position in one second?
| 1. | \(100~\text{times}\) | 2. | \(50~\text{times}\) |
| 3. | \(200~\text{times}\) | 4. | \(400~\text{times}\) |
Subtopic: Standing Waves |
Level 3: 35%-60%
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Consecutive frequencies emitted from an organ pipe are \(75~\text{Hz}\), \(125~\text{Hz}\), \(175~\text{Hz}\). The frequency of the tenth overtone will be:
| 1. | \(275~\text{Hz}\) | 2. | \(175~\text{Hz}\) |
| 3. | \(525~\text{Hz}\) | 4. | \(575~\text{Hz}\) |
Subtopic: Standing Waves |
61%
Level 2: 60%+
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The third overtone of a closed pipe is observed to be in unison with the second overtone of an open pipe. The ratio of the lengths of the pipes is:
| 1. | \(\frac{3}{2}\) | 2. | \(\frac{5}{3}\) |
| 3. | \(\frac{7}{4}\) | 4. | \(\frac{7}{6}\) |
Subtopic: Standing Waves |
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Level 2: 60%+
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The two nearest harmonics of a tube close at one end and open at the other end are \(220~\text{Hz}\) and \(260~\text{Hz}\). What is the fundamental frequency of the system?
| 1. | \(10~\text{Hz}\) | 2. | \(20~\text{Hz}\) |
| 3. | \(30~\text{Hz}\) | 4. | \(40~\text{Hz}\) |
Subtopic: Standing Waves |
65%
Level 2: 60%+
NEET - 2017
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The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe L metre long. The length of the open pipe will be
1. L
2. 2L
3. L/2
4. 4L
Subtopic: Standing Waves |
76%
Level 2: 60%+
NEET - 2016
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An air column, closed at one end and open at the other, resonates with a running fork when the smallest length of the column is 50 cm. The next larger length of the column resonating with the same tunning fork is
1. 1OO cm
2. 150 cm
3. 200 cm
4. 66.7cm
Subtopic: Standing Waves |
76%
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NEET - 2016
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A string is stretched between fixed points separated by \(75.0~\text{cm}.\) It is observed to have resonant frequencies of \(420~\text{Hz}\) and \(315~\text{Hz}\). There are no other resonant frequencies between these two. The lowest resonant frequency for these strings is:
| 1. | \(155~\text{Hz}\) | 2. | \(205~\text{Hz}\) |
| 3. | \(10.5~\text{Hz}\) | 4. | \(105~\text{Hz}\) |
Subtopic: Standing Waves |
79%
Level 2: 60%+
NEET - 2015
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The number of possible natural oscillations of the air column in a pipe closed at one end of a length of \(85~\text{cm}\) whose frequencies lie below \(1250~\text{Hz}\) is: (velocity of sound \(340~\text{ms}^{-1}\))
| 1. | \(4\) | 2. | \(5\) |
| 3. | \(7\) | 4. | \(6\) |
Subtopic: Standing Waves |
65%
Level 2: 60%+
NEET - 2014
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