- 1(current)
Q. No.
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Which of the following statements is/are correct.
| a. | Motion of a kink in a longitudinal spring produced by displacing one end of the spring sideways is transverse and longitudinal, both. |
| b. | Waves produced in a cylinder containing a liquid by moving its piston back and forth is longitudinal. |
| c. | Waves produced by a motorboat sailing in water are transverse and longitudinal, both. |
| d. | Ultrasonic waves in air produced by a vibrating quartz crystal are longitudinal. |
1. (a), (b) and (d)
2. (b) and (d)
3. (a), (c) and (d)
4. All are correct
Subtopic: Types of Motion |
63%
Level 2: 60%+
Hints
Which of the following functions of time represent/s periodic motion?
(\(\omega\) is any positive constant)
Choose the correct option from the given ones:
(\(\omega\) is any positive constant)
| (a) | \((\sin\omega t+ \cos \omega t)\) |
| (b) | \((\sin\omega t+ \cos 2\omega t+ \sin4\omega t)\) |
| (c) | \(e^{-\omega t}\) |
| (d) | \(\mathrm{log(\omega t)}\) |
| (e) | \(\sin^{2}\omega t\) |
Choose the correct option from the given ones:
| 1. | (a) only |
| 2. | (a), (b), and (d) only |
| 3. | (a), (b), and (e) only |
| 4. | All of these |
Subtopic: Types of Motion |
69%
Level 2: 60%+
Hints
The figure depicts four \(({x\text-t})\) plots for the linear motion of a particle.
| (a) |  |
| (b) |  |
| (c) |  |
| (d) |  |
Which of the following is true?
| 1. | (a) is periodic but (c) is not periodic |
| 2. | (b) is periodic but (d) is not periodic. |
| 3. | (b) and (d) are periodic. |
| 4. | only (c) is periodic. |
Subtopic: Types of Motion |
80%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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