Author Question: Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier? ... (Read 146 times)

fagboi · **on:** Jul 28, 2018

Which of these waves will diffract the most when passing through a 20 cm wide opening in a barrier?
a. a wave with a wavelength of 25 cm
b. a wave with a wavelength of 2 cm
c. a wave with a wavelength of 0.05 cm
d. none of these waves will diffract at all

Question 2

You can hear sound through an open window from sources that are not in your line of sight because of
a. interference
b. diffraction
c. the sound level
d. the Doppler effect
e. none of the above