The fig above shows two waveforms X and Y. If the frequency of X is 30Hz what is the frequency of Y

a
12Hz
b
19Hz
c
60Hz
d
75Hz
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Discussions (28)

Memevictor
7 years ago
For X ,number of wavelength = 1 frequency= 30 . frequency = no of wavelength/time , time= n/f = 1/30 =0.33. Both x and y travel with d same time . number of wavelenghs of y= 2.5 therefore f=n/t= 2.5/0.33 = 75. Hope you find this useful

Ediyangaette
1 year ago
imn x the is 1 wavelength for 30hz .
if in y there is 2.5 wavelength,
its frequency would be =2.5 *30
=75hz.


