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Q. No.Which one of the following statements is true?
| 1. | Both light and sound waves in the air are transverse. |
| 2. | The sound waves in the air are longitudinal while the light waves are transverse. |
| 3. | Both light and sound waves in the air are longitudinal. |
| 4. | Both light and sound waves can travel in a vacuum. |
Subtopic: Types of Waves |
82%
From NCERT
AIPMT - 2006
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Given below are two statements:
| Assertion (A): | Ocean waves hitting a beach are always found to be nearly normal to the shore. |
| Reason (R): | Ocean waves are longitudinal waves. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Types of Waves |
55%
From NCERT
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The displacement of a particle is given by y=5×10−4sin(100t−50x), where x is in metres and t is in seconds. The velocity of the wave is:
1. 5000 m/s
2. 2 m/s
3. 0.5 m/s
4. 300 m/s
1. 5000 m/s
2. 2 m/s
3. 0.5 m/s
4. 300 m/s
Subtopic: Wave Motion |
90%
From NCERT
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A tuning fork makes 256 vibrations per second in air. When the velocity of sound is 330 m/s, then the wavelength of the tone emitted is:
1. 0.56 m
2. 0.89 m
3. 1.11 m
4. 1.29 m
1. 0.56 m
2. 0.89 m
3. 1.11 m
4. 1.29 m
Subtopic: Wave Motion |
87%
From NCERT
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The equation y(x,t)=0.005cos(αx−βt) describes a wave traveling along the x-axis. If the wavelength and the time period of the wave are 0.08 m and 2.0 s, respectively, then α and β in appropriate units are:
1. α=25.00π,β=π
2. α=0.08π,β=2.0π
3. α=0.04π,β=1.0π
4. α=12.50π,β=π2.0
1. α=25.00π,β=π
2. α=0.08π,β=2.0π
3. α=0.04π,β=1.0π
4. α=12.50π,β=π2.0
Subtopic: Wave Motion |
87%
From NCERT
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If a travelling wave pulse is given by y=204+(x+4t)2 m, then:
| 1. | the pulse is traveling along the negative x-axis. |
| 2. | the speed of the pulse is 4 m/s. |
| 3. | the amplitude of the pulse is 5 m. |
| 4. | all of these. |
Subtopic: Wave Motion |
85%
From NCERT
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The equation of a progressive wave is given by y=4sin{π(t5−x9)+π6}, where x and y are in metres and t in seconds.
Which of the following is correct?
1. v=5 m/s
2. λ=18 m
3. A=0.04 m
4. ν=50 Hz
Which of the following is correct?
1. v=5 m/s
2. λ=18 m
3. A=0.04 m
4. ν=50 Hz
Subtopic: Wave Motion |
86%
From NCERT
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A wave traveling in the +ve x-direction having maximum displacement along y-direction as 1 m, wavelength 2π m and frequency of 1π Hz, is represented by:
| 1. | y=sin(2πx−2πt) | 2. | y=sin(10πx−20πt) |
| 3. | y=sin(2πx+2πt) | 4. | y=sin(x−2t) |
Subtopic: Wave Motion |
88%
From NCERT
AIPMT - 2013
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If a wave is travelling in a positive x-direction with A=0.2 m, v=360 m/s, and λ=60 m, then the correct expression for the wave will be:
| 1. | y=0.2sin[2π(6t+x60)] |
| 2. | y=0.2sin[π(6t+x60)] |
| 3. | y=0.2sin[2π(6t−x60)] |
| 4. | y=0.2sin[π(6t−x60)] |
Subtopic: Wave Motion |
87%
From NCERT
AIPMT - 2002
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The wave described by y=0.25sin(10πx−2πt), where x and y are in metres and t in seconds, is a wave traveling along the:
| 1. | −ve x direction with frequency 1 Hz. |
| 2. | +ve x direction with frequency π Hz and wavelength λ=0.2 m. |
| 3. | +ve x direction with frequency 1 Hz and wavelength λ=0.2 m. |
| 4. | −ve x direction with amplitude 0.25 m and wavelength λ=0.2 m. |
Subtopic: Wave Motion |
85%
From NCERT
NEET - 2008
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