State the characteristics of a transverse wave.
Answers
it is perpendicular to the direction of motion
:
(1) The individual particles of the medium vibrate perpendicular to the direction of propagation of the wave with the same period and amplitude.
(2) The progressively changing phase of the successive particles results in the typical formation of alternate crests and troughs that are periodic in space and time. A crest and an adjacent trough form one cycle of a transverse wave
.(3) In a transverse wave, transfer of energy takes place through crests and troughs.
(4) There are no pressure and density variations at any point of medium during the passage of a transverse wave.
(5) A transverse wave can travel through solids and on surfaces of liquids only. They cannot travel through liquids and gases.
(6) The vibrations of the particles of the medium lie in the same plane, called the plane of vibration or polarization. Only transverse waves exhibit polarization.
(7) Propagation of a transverse wave depends on the rigidity of the medium, i.e., its ability to resist shear. Hence, the medium must possess the modulus of rigidity.