A loudspeaker is playing music in a room. The door to the room is open and has a width of 0.80 m.
Sound waves of many different frequencies pass through the doorway and diffract. The speed of sound in air is $340{\text{ }}m{\text{ }}{s^{ - 1}}$.
Which frequency of sound wave diffracts the most as it passes through the doorway?
1 )
$2.4 \times 10^{-3} \, \text{Hz}$
2 )
$8.0 \times 10^{-1} \, \text{Hz}$
3 )
$2.7 \times 10^2 \, \text{Hz}$
$4.3 \times 10^2 \, \text{Hz}$
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...