Waves Quiz (2) Physics AS Level
CIE
AS & A Level
Physics (9702)
فروردین
2010
شامل مباحث:
Chapter 12: Waves
تعداد سوالات: 20
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
25 دقیقه

پیش نمایش صفحه اول فایل
The siren of a moving police car emits a sound wave with a frequency of 440 Hz. A stationary observer hears sound of frequency 494 Hz. The speed of sound in the air is $340{\text{ }}m{\text{ }}{s^{ - 1}}$.
What could be the speed and the direction of movement of the car?