Answer:
frequency = c / lamda
=3×10^8÷ 700
= 4.2×10^5
mark brainliest please
Given:
v of light = [tex]3 * 10^{8} m/s[/tex]
λ of light = 700 nm
To find,
The frequency of a light wave
Solution:
We can simply solve this numerical problem by using the following process.
Now,
Speed (v) = [tex]3 * 10^{8}[/tex]
Wavelength (λ) = 700nm
(Here the value of wavelength is not a SI Unit hence convert)
1nm = [tex]10^{-9}[/tex] m
700nm = [tex]7 * 10^{-7}[/tex] m
Wavelength (λ) = [tex]7 * 10^{-7} m[/tex]
Frequency (f) = ?
The formula of Frequency with regards to speed and wavelength is
f = v / λ
f = [tex]3 * 10^{8}[/tex] / [tex]7 * 10^{-7}[/tex]
f = [tex]4.29 * 10^{14}[/tex] [tex]s^{-1}[/tex] ( rounded to 3 S.F )
Hence, the frequency of a light wave is [tex]4.29 * 10^{14}[/tex] [tex]s^{-1}[/tex].
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Verified answer
Answer:
frequency = c / lamda
=3×10^8÷ 700
= 4.2×10^5
mark brainliest please
Given:
v of light = [tex]3 * 10^{8} m/s[/tex]
λ of light = 700 nm
To find,
The frequency of a light wave
Solution:
We can simply solve this numerical problem by using the following process.
Now,
Speed (v) = [tex]3 * 10^{8}[/tex]
Wavelength (λ) = 700nm
(Here the value of wavelength is not a SI Unit hence convert)
1nm = [tex]10^{-9}[/tex] m
700nm = [tex]7 * 10^{-7}[/tex] m
Wavelength (λ) = [tex]7 * 10^{-7} m[/tex]
Frequency (f) = ?
The formula of Frequency with regards to speed and wavelength is
f = v / λ
f = [tex]3 * 10^{8}[/tex] / [tex]7 * 10^{-7}[/tex]
f = [tex]4.29 * 10^{14}[/tex] [tex]s^{-1}[/tex] ( rounded to 3 S.F )
Hence, the frequency of a light wave is [tex]4.29 * 10^{14}[/tex] [tex]s^{-1}[/tex].