Question

What is the primary advantage of using digital devices to study waves?
A. They allow for more accurate measurements and analysis
B. They are cheaper than analog devices
C. They can only measure one type of wave

Answer 1

A two-way radio set, like a walkie-talkie, usually works with an analog signal rather than a digital signal. What is the disadvantage of this device?
A. The analog walkie-talkie is not as clear
B. The analog walkie-talkie has less noise
C. The analog walkie-talkie is likely to be more expensive
D. The analog walkie-talkie is more difficult to use

Answer 2

A. They allow for more accurate measurements and analysis

Answer 3

C. The analog walkie-talkie is likely to be more expensive