6.
1.
What are the characteristics of wave motion?
2.
A wave transmit energy, does it transmit linear momentum?
3.
How would you prove experimentally that energy can be transported by a wave?
4.
How are stationary waves formed?
5. State and explain the principle of super position of waves.
6.
Solid can propagate both longitudinal and transverse waves but liquid and gas
propagate only longitudinal wave, why?
7. Distinguish between progressive wave and stationary waves.
8. Why are longitudinal waves called pressure waves?
9. Transverse waves are not produced in liquids and gases. Why?
10. When we start filling an empty bucket with water, the pitch of sound produced goes any
changing. Why?
11. What is the distance between a node an adjoining antinode in a stationary wave? answer these guys
Answers
Answer:
1) There are three measurable properties of wave motion: amplitude, wavelength, and frequency. A definitive experiment was Young's double slit experiment, which demonstrated that light shined at two slits in a screen show an interference pattern characteristic of waves of light, rather than particles.
2) Yes, wave transmits the linear momentum. Take a long rod of metal and put some weight at one end of metal then hit it with hammer at other end. The momentum of wave will transferred which causes the weight to leave the rod with certain velocity.
3)Consider a cork in a wave tank. There is energy associated with the change in its vertical position. You could use a retrieving tether on the cork and measure the force that it exerts on the tether as it goes up.
4)Standing wave, also called stationary wave, combination of two waves moving in opposite directions, each having the same amplitude and frequency. The phenomenon is the result of interference; that is, when waves are superimposed, their energies are either added together or canceled out.
5)The superposition principle states that when two or more waves overlap in space, the resultant disturbance is equal to the algebraic sum of the individual disturbances.
6)Solids, can support both longitudinal and transverse waves but only longitudinal waves can propagate in gases. Reason : For the proagation of transverse waves, medium must also necessarily have the property of rigidity.
7)Stationary waves are still, they do not travel in a medium. Progressive waves travel in the medium in different phases. Stationary waves are at rest but they perform simple harmonic motion (SHM) in varying amplitude. Progressive waves, on the other hand, perform simple harmonic motion in its mean position.
8 ) Mechanical longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when traveling through a medium, and pressure waves, because they produce increases and decreases in pressure.
9)Transverse waves travel in the form of crests and troughs involving change in shape of the medium. ... As liquid and gases do not possess the elasticity of shape, therefore mechanical transverse waves cannot be produced in liquids and gases.
10)The frequency of the note produced = v/4L, where v is velocity of sound in air and L is length of air column, which is equal to depth of water level from the open end. As the bucket is filled with water, L decreases. Therefore, frequency of sound produced goes on increasing.
11)The distance between any two adjacent nodes in a stationary wave is 15 cm.
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