InterviewSolution
 Saved Bookmarks
    				| 1. | 
                                    (i) What are mechanical waves ?(ii) Name one property of waves that do not change when the wave passes from one medium to another. | 
                            
| 
                                   
Answer»  (i) The sound waves require a medium for their propagation. These waves travel in the medium though the vibrations of the medium particles about their mean positions, so they are also called elastic or mechanical waves. (ii) Frequency.  | 
                            |