Nisisikie kelele, maana previous mlisema hilo kawape form 2, mara nyanya hili, twende Sawa!!
I you want 2 miles, I'll go with you 5 miles.
1. George is blowing across the top of a 350 cm glass tube. He produces a note with a frequency of 196 Hz. By calculating the frequencies of the first harmonics, determine whether the tube is open at one or both ends. The speed of sound in air is 343 mss 1
2. To produce coherent microwaves a single source is positioned behind a metal sheet in which two slits have been cut at a distance of 80 cm from each other. The wavelength of the microwaves produced is
0.1 m
(a) What is meant by ‘coherent microwaves?
Arnav walks in a straight line parallel to the slits and on the opposite side of the metal sheet from the source. He notices that there are amplitude maxima and minima and that the maxima are separated by a distance of 0.75 m
(b)Explain, in terms of the path difference, why he encounters a series of amplitude maxima and minima.
(c) How far away from the metal sheet is Arnav? You may assume that the approximations that apply to light are also valid for sound.
I you want 2 miles, I'll go with you 5 miles.
1. George is blowing across the top of a 350 cm glass tube. He produces a note with a frequency of 196 Hz. By calculating the frequencies of the first harmonics, determine whether the tube is open at one or both ends. The speed of sound in air is 343 mss 1
2. To produce coherent microwaves a single source is positioned behind a metal sheet in which two slits have been cut at a distance of 80 cm from each other. The wavelength of the microwaves produced is
0.1 m
(a) What is meant by ‘coherent microwaves?
Arnav walks in a straight line parallel to the slits and on the opposite side of the metal sheet from the source. He notices that there are amplitude maxima and minima and that the maxima are separated by a distance of 0.75 m
(b)Explain, in terms of the path difference, why he encounters a series of amplitude maxima and minima.
(c) How far away from the metal sheet is Arnav? You may assume that the approximations that apply to light are also valid for sound.
