Question

A radio station broadcast on a frequency of 980 kHz. Calculate the wavelength of the electromagnetic radiation.​

Answer 1

Solution :

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⠀⠀⠀ • Frequency [v] = 980 kHz

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$\implies\sf 980 \times 10^{3} Hz$

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⠀⠀⠀⠀⠀⠀⠀⠀Using Formula :

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$\star\: \: \boxed{\frak{ v = \dfrac{c}{\lambda}}}$

$\qquad\qquad\quad\underline{\sf{Substituting \ Values \ :}}$

⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

⠀⠀⠀⠀⠀Now Finding wavelength : ⠀⠀⠀⠀

$\implies\sf v = \dfrac{ 3 \times 10^{8} ms^{-1}}{980 \times 10^{3}} \\\\\\\implies\sf \dfrac{3}{98} \times 10^{4} \\\\\\\implies{\underline{\boxed{\frak{\purple{306 \ m}}}}{\:\star}}$

Hence, wavelength of the electromagnetic radiation is 306m.

Answer 2

AnswEr :

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⠀⠀⠀$\bullet$⠀Frequency [v] = 980 kHz

⠀⠀⠀⠀⠀

$\implies\sf 980 \times 10^{3} Hz$

⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀Using Formula :

⠀⠀⠀⠀

$\star\: \: \boxed{\frak{ v = \dfrac{c}{\lambda}}}$

$\qquad\qquad\quad\underline{\sf{Substituting \ Values \ :}}$

⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

⠀⠀⠀⠀⠀Now Finding wavelength : ⠀⠀⠀⠀

$\implies\sf v = \dfrac{ 3 \times 10^{8} ms^{-1}}{980 \times 10^{3}} \\\\\\\implies\sf \dfrac{3}{98} \times 10^{4} \\\\\\\implies\boxed{\frak{\purple{306 \ m}}}$

Hence, wavelength of the electromagnetic radiation is 306 m.