Physics, asked by Anonymous, 5 months ago

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

Answers

Answered by Anonymous
0

Explanation:

• 3x - 4y = 10

• 4x + 3y = 5

\rule{150}2

3x - 4y = 10 ....[Equation 1]

4x + 3y = 5 ....[Equation 2]

\:\:\:\small\bold{\underline{\sf{\pink{Multiplying\: Equation\;(1)\;by \:3 \:\&\; Equation\;(2)\:by \; 4}}}}

MultiplyingEquation(1)by3&Equation(2)by4

\implies⟹ (3x - 4y = 10) × 3

\implies⟹ 9x - 12y = 30 .....[Equation 4]

\implies⟹ (4x + 3y = 5) × 4

\implies⟹ 16x + 12y = 20 .....[Equation 5]

\rule{150}2

\:\;\small\bold{\underline{\underline{\sf{\pink{Now,\:From \; Equations \;(3) \;\&\;(4)}}}}}

Now,FromEquations(3)&(4)

\implies\sf 9x -12y = 30⟹9x−12y=30

\implies\sf 16x + 12y = 20⟹16x+12y=20

\implies\sf 25x = 50⟹25x=50

\implies\sf x =\cancel\dfrac{50}{25}⟹x=

25

50

\implies\boxed{\sf{x\:=\:2}}⟹

x=2

Substituting the Value of x in Equation 1

\implies\sf 3x - 4y = 10⟹3x−4y=10

\implies\sf 3(2) - 4y = 10⟹3(2)−4y=10

\implies\sf 6 - 4y = 10⟹6−4y=10

\implies\sf 4y = 6 - 10⟹4y=6−10

\implies\sf 4y = -4⟹4y=−4

\implies\sf y = \cancel\dfrac{-4}{4}⟹y=

4

−4

\implies\boxed{\sf{y\:=\:-1}}⟹

y=−1

Hence, The Value of x is 2 & Value of y is -1.

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