A sine wave is travelling in a medium. The minimum distance between the two particles, always having the same speed, is

1. \(\lambda\)/4

2. \(\lambda\)/3

3. \(\lambda\)/2

4. \(\lambda\)

Subtopic:  Wave Motion |
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A sine wave is travelling in a medium. A particular particle has zero displacement at a certain instant. The particle closest to it having zero displacement is at a distance

1. \(\lambda\)/4

2. \(\lambda\)/3

3. \(\lambda\)/2

4. \(\lambda\)

Subtopic:  Wave Motion |
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Which of the following equations represents a wave travelling along Y-axis?

1. x = A sin (ky-wt)

2. y = A sin (kx-wt)

3. y = A sin ky cos wt

4. y = A cos ky sin wt

Subtopic:  Wave Motion |
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The equation y = A sin2 (kx-wt) represents a wave motion with

1. amplitude A, frequency w/2\(\pi\)

2. amplitude A/2, frequency w/\(\pi\)

3. amplitude 2A, frequency w/4\(\pi\)

4. does not represent a wave motion

Subtopic:  Wave Motion |
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Which of the following is a mechanical wave?

1. Radio waves

2. X-rays

3. Light waves

4. Sound waves

Subtopic:  Types of Waves |
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A cork floating in a calm pond executes simple harmonic motion of frequency v when a wave generated by a boat passes by it. The frequency of the wave is

1. v

2. v/2

3. 2v

4. \(\sqrt2\)v

Subtopic:  Wave Motion |
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Two strings A and B, made of same material, are stretched by same tension. The radius of string A is double of the radius of B. A transverse wave travels on A with speed vA and on B with speed vB. The ratio vA/vB is

1. 1/2

2. 2

3. 1/4

4. 4

Subtopic:  Speed of Sound |
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Both the strings, shown in the figure, are made of same material and have same cross section. The pulleys are light. The wave speed of a transverse wave in the string AB is v1 and in CD it is v2. Then v1/v2 is

                                                                    

1. 1

2. 2

3. \(\sqrt2\)

4. 1/\(\sqrt2\)

Subtopic:  Speed of Sound |
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Velocity of sound in air is 332 ms-1. Its velocity in vacuum will be

1. >332 ms-1

2. =332 ms-1

3. <332 ms-1

4. meaningless

Subtopic:  Types of Waves |
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A wave pulse, travelling on a two-piece string, gets partially reflected and partially transmitted at the junction. The reflected wave is inverted in shape as compared to the incident one. If the incident wave has wavelength \(\lambda\) and the transmitted wave\(\lambda\)',

1. \(\lambda\)' > \(\lambda\)

2. \(\lambda\)' = \(\lambda\)

3. \(\lambda\)' < \(\lambda\)

4. nothing can be said about the relation of \(\lambda\) and \(\lambda\)'

Subtopic:  Speed of Sound |
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