Question

Help me Brainlics :)

A radio station transmits waves of
wavelength 200m. If the speed of
waves is 2 x 108/^8 ms'", find the frequency of the radio station. ?​

Answer 1

$\green\maltese$Given :

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• $\sf\dashrightarrow\:Wavelength \:[λ] \:= \:200$

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• $\sf\dashrightarrow\:Speed\: of \:wave \:[s] \:=\: 2×10⁸m/s$

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$\red\maltese$To Find :

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• $\sf\dashrightarrow\:The\: radio \:Station\: Frequency$

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$\orange\maltese$Formula Used Here :

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• $\large\sf\implies\pink{\underbrace{\underline{\boxed{\:f\:=\:\dfrac{s}{λ}}}}}$

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$\purple\bigstar$Understanding the concept :

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• For solving this question we have to first understand the concept of frequency. we have to apply formula f = s/λ.After putting value in formula we can easily calculate frequency of radio station .

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$\red\dag$So let solve Further !

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$\orange\maltese$ Putting the value in Formula :

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• $\large\sf\longmapsto\green{\:f\:=\:\dfrac{s}{λ}}$

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• $\sf\longmapsto\pink{\:f\:=\:\dfrac{2 × 10⁸}{200}}$

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• $\sf\longmapsto\blue{\:f\:=\:1 × 10⁶\:hz }$

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$\sf\longrightarrow\red{\underline{\underbrace{\underbrace{Hence,\:the \:frequency \:of \:the \:radio\: wave\: is \:1×10⁶ \:hz}}}}$

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Answer 2

$\huge\sf \pmb{\orange {\underline\pink{\underline{\: \: Ꭺ ꪀ \mathfrak ꕶ᭙ꫀя \: \: }}}}$

• The relation between wavelength $\bf{ ( \lambda )}$
• Wave speed (v)
• Frequency (f) is v = $\bf{ F \lambda }$

Thus,

$\sf F = \LARGE\frac{ v }{ \lambda } = \frac{ 2 \times 10^{8} }{200}$

‏‏‎ ‎

$\sf 10^{6}Hz \: = \: 1mHz$

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$\tiny\underline\mathfrak \purple{ Hope \: you \: will \: understand }$