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BEATS
Lesson 15 of 21 • 2 upvotes • 12:36mins
Rajesh Kumar
When two sound waves of different frequency approach your ear, the alternating constructive and destructive interference causes the sound to be alternatively soft and loud - a phenomenon which is called "beating" or producing beats. In acoustics, a beat is an interference pattern between two sounds of slightly different frequencies, perceived as a periodic variation in volume whose rate is the difference of the two frequencies.when the two waves are nearly 180 degrees out of phase the maxima of one wave cancel the minima of the other, whereas when they are nearly in phase their maxima sum up, raising the perceived volume.
(Hindi) Sound wave
21 lessons • 3h 20m
1
Sound Wave Course Overview (in Hindi)
5:08mins
2
Nature and Propagation of Sound Wave (in Hindi)
10:19mins
3
Wavefront, displacement Wave and Pressure Wave (in Hindi)
13:10mins
4
Speed of Sound Wave in Material Medium (in Hindi)
7:14mins
5
Speed of Sound Wave in Solid and Gases (in Hindi)
8:37mins
6
(Hindi)Effect of pressure, temperature and humidity on the speed of sound in air
8:28mins
7
(Hindi) Intensity of sound wave
8:59mins
8
(Hindi) Appearance of sound to human ear
7:10mins
9
(Hindi) Interference of sound wave
10:14mins
10
(Hindi) Reflection of sound wave
10:16mins
11
(Hindi)Vibrations of air columns in closed organ pipe
7:45mins
12
(Hindi) Vibrations of air column in open organ pipe
10:47mins
13
(Hindi) Determination of speed of sound in air,Resonance Column Method
9:14mins
14
(Hindi)Kundt's tube experiment speed of sound in gas and rod
11:58mins
15
BEATS
12:36mins
16
Diffraction of sound wave
10:31mins
17
Doppler effect in sound wave.
9:58mins
18
Change in wavelength, Sonic Boom and Mach Number
9:19mins
19
Musical scale, acoustic of building, Reverberation Time, Echo
12:06mins
20
Numerical exercise no 01, based on sound wave
10:05mins
21
Numerical exercise no 02
6:21mins
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