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1 vote
What is the wavelength of a radio wave that has a frequency of 9.40 X 10^8Hz?
3.1

1 Answer

5 votes
671nm

Step-by-step explanation:
Wavelength relates to frequency as follows:
λ
=
v
f

in which
f
is the frequency,
v
is the speed of light, and
λ
is the wavelength.
Filling this in for the example:
v
=
3

10
8
m
s

f
=
4.47

10
14
H
z
=
4.47

10
14
s

1

λ
=
3

10
8
m
s
4.47

10
14
s

1
=
6.71

10

7
m

from m to nm is

10
9

So the wavelength is:
671
n
m
(red light).
User Antonietta
by
7.6k points