# <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> A string of length l is fixed at one end and free at the other. If it resonates in different modes, then the ratio of frequencies is: 1. 1:2:3: ...... 2. 1:3:5:7: ...... 3. 1:2:4:8: .......... 4. 1:3:9: ........

Subtopic:  Standing Waves |
82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A sound wave is passed through a chamber. If the r.m.s. speed of molecules in a gas is v1 and the speed of sound is v2 in the gas, then:

 1 v1 = v2 2 v1 > v2 3 v1 < v2 4 v1 ≤ v2
Subtopic:  Speed of Sound |
64%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Stationary waves can be obtained in an air column even if interfering waves have different:

1. Amplitude

2. Wavelength

3. Velocity

4. Frequency

Subtopic:  Standing Waves |
58%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

$$y-x$$ graph of a travelling wave along $$+x$$ direction is shown at any instant $$t$$(Symbols have their usual meanings). The velocity of a particle at:

 1 $$x_1$$ is downward 2 $$x_2$$  is downward 3 $$x_3$$  is upward 4 $$x_4$$  is downward

Subtopic:  Wave Motion |
54%
From NCERT
Hints

Which one of the following graphs represents correctly the given wave equation at the origin?

$\mathrm{y}=2\sqrt{3}\mathrm{sin}\left(2\mathrm{\pi x}-3\mathrm{\pi t}+\frac{\mathrm{\pi }}{3}\right)$

 1 2 3 4
Subtopic:  Wave Motion |
From NCERT
Hints

Given below are two statements:

 Statement I: With the displacement wave we can produce a pressure wave. Statement II: Displacement and pressure waves both are having a phase difference of $$\frac{\pi }{2}$$.

 1 Statement I is incorrect and Statement II is correct. 2 Both Statement I and Statement II are correct. 3 Both Statement I and Statement II are incorrect. 4 Statement I is correct and Statement II is incorrect.
Subtopic:  Pressure Wave in Sound |
81%
From NCERT
Hints

If the transverse displacement of a string clamped at both ends is given by y(x,t)=12(cm) sin(6.28x)cos(3.14 t), where x is in cm and t is in seconds, then which of the following is not true?

 1 The velocity of the component wave is 0.5 cm/s. 2 The amplitude of one of the component waves is 6 cm. 3 The distance between two consecutive nodes is 0.5 cm. 4 x= 0.25 cm is the first node except the nodes at the ends.

Subtopic:  Standing Waves |
55%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Given the equation for a wave on the string, $$y = 0.5\sin(5x-3t)$$ where $$y$$ and $$x$$ are in metres and $$t$$ in seconds, the ratio of the maximum speed of particle to the speed of wave is:
 1 $$1:1$$ 2 $$5:2$$ 3 $$3:2$$ 4 $$4:5$$
Subtopic:  Wave Motion |
83%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Stationary waves are formed on a stretched string. If the wavelength is $\mathrm{\lambda }$, then the distance between two points having the maximum displacement can be:

 1 3λ/2 2 4λ 3 5λ/2 4 All of these
Subtopic:  Standing Waves |
66%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The graph between fundamental frequency ($$f$$) and corresponding tension ($$T$$) in a sonometer wire is best-represented by:

 1 2 3 4
Subtopic:  Travelling Wave on String |
51%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch