## Self-test 1A.1B

$c=\lambda v$

AnvitaaAnandkumar_1B
Posts: 56
Joined: Fri Aug 02, 2019 12:15 am

### Self-test 1A.1B

What is the wavelength of the signal from a radio station transmitting at
98.4 MHz?

Joseph Saba
Posts: 154
Joined: Thu Jul 11, 2019 12:16 am

### Re: Self-test 1A.1B

I believe since we use the equation c = w*f, then 3e8= 98.6e6x. to solve for x (wavelength) then divide by the frequency. I got 3.05 meters.

Astrid Lunde 1I
Posts: 103
Joined: Sat Sep 07, 2019 12:16 am

### Re: Self-test 1A.1B

Joseph Saba wrote:I believe since we use the equation c = w*f, then 3e8= 98.6e6x. to solve for x (wavelength) then divide by the frequency. I got 3.05 meters.

Are c and w*f constant values in the equation you used?

Ryan Chang 1C
Posts: 105
Joined: Sat Aug 24, 2019 12:17 am

### Re: Self-test 1A.1B

Astrid Lunde 1G wrote:
Joseph Saba wrote:I believe since we use the equation c = w*f, then 3e8= 98.6e6x. to solve for x (wavelength) then divide by the frequency. I got 3.05 meters.

Are c and w*f constant values in the equation you used?

C is a constant value which is the speed of light. Lavelle introduced it in lectures as 3.00x10^8 m/s in a vacuum. I'm assuming w and f stand for wavelength and frequency which are not constants since they will be different depending on the problem.

Joseph Saba
Posts: 154
Joined: Thu Jul 11, 2019 12:16 am

### Re: Self-test 1A.1B

w= wavelength, f= frequency, c= speed of light (3e8)