Longitudinal Waves

Q.

Which type of wave sound is?

1. Longitudinal wave

2. Mechanical wave

3. Transverse wave

4. Both A and B

Q.

Which of the following waves can be polarized?

1. Transverse waves

2. Tsunami waves

3. Vibration of the drums

4. Music woofers

Q. Which of the following is an example of longitudinal wave?

1. Microwave
2. Infrared
3. Sound of guitar
4. Radiowave

Q.

RADIATION:

Is heat is transferred by electromagnetic waves? What is known as electromagnetic waves?

Q.

Sound is a longitudinal as well as a mechanical wave.

1. True

2. False

Q.

Sound travels in straight line.

1. True

2. False

Q. Establish the relation for the frequency of vibration for a stretched string of length (l), linear mass density m and tension in the string

Q.

What are the type of sound waves

Q.

How is sound propagated through air?

Q. Give reasons - Air is filled into a bicycle tube to fill it tight.

Q. Are sound wave like water waves which reflects back?

Q.

How is a longitudinal wave represented graphically?

Q. Which of the following is/are properties of a sound wave?

1. It does not requires a medium to propagate.
2. It is a longitudinal wave.
3. It is a mechanical wave.
4. Travels faster than light.

Q. On the peak of mountain, why do we have heavy ears?

Q.

Draw a distance-displacement graph curve in case of transverse wave and indicate the position of crest and troughs

Q. A wave in which the particles oscilllate parallel to the direction of travel of the wave is known as the ______ wave.

1. transverse
2. non-mechanical
3. mechanical wave
4. longitudinal

Q.

Describe an experiment to show that sound does not travel in a vacuum.

Q.

Give an example of a longitudinal wave.

Q.

When we blow air in particular region, Does the pressure in that particular region affects?

Q.

The nature of sound waves is :

1. Transverse

2. Longitudinal

3. Electromagnetic

4. Seismic

Q.

Describe an experiment to show that sound does not travel in a vacuum.

Q. The equation of displacement due to a sound wave is $s=s_{0}si{n}^2(\omega t-kx)$. If the bulk modulus of the medium is B, then the equation of pressure variation due to that sound is :

1. $-Bk{s}_{0}co{s}^2(\omega t-kx)$
2. $Bk{s}_{0}sin(2\omega t-2kx)$
3. $Bk{s}_{0}co{s}^2(\omega t-kx)$
4. $-Bk{s}_{0}sin(2\omega t-2kx)$

Q.

Sound is:

1. a form of energy

2. a wave

3. a state of matter

4. a wave as well as form of energy

Q. A sound wave in air propagate similar to _________.

1. compressions and relaxations in a slinky
2. a ball thrown into the air
3. an ocean wave
4. a light wave.

Q.

Sound can be passed through

1. a particle moving from one place to another

2. a particle moving about its fixed position, and influencing the particle next to it to do the same, and passing the trend to subsequent particles.

3. Both A and B

4. None of the above

Q. Assertion :In longitudinal wave pressure is maximum at a point where displacement is zero. Reason: There is a phase difference of $\frac{\pi }{2}$ between $y(x,t)$ and $\Delta P(x,t)$ equation in case longitudinal wave.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Assertion is incorrect but Reason is correct

Q. For a sound wave travelling in air from east to west, the particles vibrate in ___ direction.

1. 
   north-south
2. 
   south-east
3. north-west
4. 
   east-west

Q. Choose the correct options for longitudinal wave

1. maximum pressure variation is BAK
2. maximum density variation is $\rho AK$
3. pressure equation and density equation are in phase
4. pressure equation and displacement equation are out of phase

Q. The sound propagates in a gaseous medium by

1. transverse waves
2. longitudinal waves
3. both (a) and (b)
4. neither (a) nor (b)

Q. Sound can travel through solids and liquids, but not through gases.

1. True
2. False