Answer to Question #202441 in Physics for Hanouf

Question

1. Radio waves from an FM station have a frequency of 110 MHz. If the waves

travel with a speed of 3.00 x10^8 m/s, what is the wavelength?

Answer Options:

1- 2.91 m

2- 2.73 m

3- 3.3 x 10^16 m

4- 2.73 x 10^6 m

2.Calculate the frequency of an 18 m wave travels at 288 m/s.

Answer options:

1- 16 Hz

2- 28.8 Hz

3- 4 Hz

4- 205 Hz

3.A wave that is produced by a series of continuous pulses is a

_______________ wave.

Answer Options:

1- periodic

2- continuous

3- pulse

4- compression

Answer 1

1. The wavelength is

$$\lambda=\frac cf=2.73\text{ m}.$$

2. The frequency is

$$f=\frac c\lambda=16\text{ Hz}.$$

3. A wave that is produced by a series of continuous pulses is a pulse wave.