解析 (b) (A polarised wave vibrates in a single plane in space.) Since longitudinal waves vibrate along their axis of propagation, it is not possible to polarise a longitudinal wave.Hence, only transverse waves can be polarised as it vibrates perpendicular to its axis of propagation. ...
What are two reasons why mercury rather than water is used in barometers? Explain why (a) transverse mechanical waves cannot be propagated in liquids and gases while (b) waves on strings are always transverse. Why is it that when water has been boiled so much, it reaches a point when it...
What is common between transverse waves and longitudinal waves? What are the different types of electromagnetic waves? What are examples of transverse waves? What can electromagnetic waves travel through? What do all electromagnetic waves have in common? What is diffraction of electromagnetic...