![]() ![]() (iv) Diffraction of sound takes place more when : Which frequency was better audible around the pillar obstacle?Įxplanation: In fact, diffraction is more pronounced with longer wavelengths implies that you can hear low frequencies around obstacles better than high frequencies. (iii) The minimum and maximum frequencies in the musical programme were 550 Hz and 10 kHz. (ii) Diffraction is more pronounced with _ wavelengths.Įxplanation: In fact, diffraction is more pronounced with longer wavelengths (i) A and B could hear the music programme due to phenomenon namedĮxplanation: The fact we hear sounds around corners and around barriers involves both diffraction and reflection of sound. Read the above case/passage and answer the following questions: The opening in this case functions as a localized source of sound. But when the opening is smaller than the wavelength more diffraction occurs and the waves spread out greatly – with semicircular wavefront. This is because when the width of the opening is larger than the wavelength of the wave passing through the gap then it does not spread out much on the other side. But he noticed that when the door opening is comparatively less he could hear the programme even being little away from the door. In fact, diffraction is more pronounced with longer wavelengths implies that we can hear low frequencies around obstacles better than high frequencies.ī was outside the door. The fact we hear sounds around corners and around barriers involves both diffraction and reflection of sound.ĭiffraction in such cases helps the sound to “bend around” the obstacles. ![]() This happened due to diffraction of sound. But surprisingly, A could hear the music programme. He thought that he would not be able to hear the programme properly.ī was waiting outside the closed door. A entered the hall and found that the seat was behind a pillar which creates an obstacle. They purchased the single ticket and decided that A would be in the hall during the 1st half and B during the 2nd half.īoth of them reached the hall together. But unfortunately only one ticket was left. Case Study Questions for Class 12 Physics Chapter 10 Wave OpticsĪ and B went to purchase a ticket of a music programme. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |