Q: A sound wave has a frequency of 4 kHz and wavelength 30 cm. How long will it take to travel 2·4 km?
(a)2·0 s
(b)0·6 s
(c)1·0 s
(d)8·0 s
Correct Answer: (a)
The correct answer is (a) '2·0 s'. This question from the Science & Technology domain tests knowledge of Computer & Information Technology.