Question

Q1.A radio station broadcast on a frequency of 980 kHz. Calculate the wavelength of the electromagnetic radiation.

Answer 1

Step-by-step explanation:

AnswEr :

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⠀⠀⠀\bullet∙ ⠀Frequency [v] = 980 kHz

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

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⠀⠀⠀⠀⠀⠀⠀⠀Using Formula :

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$\star\: \: \boxed{\frak{ v = \dfrac{c}{\lambda}}}⋆ </p><p>$

Substituting Values :

⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

⠀⠀⠀⠀⠀Now Finding wavelength : ⠀⠀⠀⠀

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

Hence, wavelength of the electromagnetic radiation is 306 m.

Answer 2

AnswEr :

⠀⠀⠀⠀⠀

⠀⠀⠀$\bullet$⠀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 : ⠀⠀⠀⠀

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

Hence, wavelength of the electromagnetic radiation is 306 m.