# Transmitting antenna

#### XodoX

Hello, I got the following problem.

1. Assuming that your cell-phone antenna acts like a monopole, how long should it be if the
cell phone operates at a frequency of 1.8 GHz? (Note: 1 GHz = 1000 MHz =
1,000,000,000 Hz.)

2. λ= c/f

f would 1/T, T being the Hz. But that would be 0,0000000001

Then, c is always the same value, right? Which would be c = 2.99792458 × 108 [m/s].

I can't get the result. It's supposed to be about 4 cm

Related Introductory Physics Homework Help News on Phys.org

#### tiny-tim

Homework Helper
Then, c is always the same value, right? Which would be c = 2.99792458 × 108 [m/s].

I can't get the result. It's supposed to be about 4 cm
Hello XodoX!

Convert c to cm/s

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