Passage I The magnetic field in a plane electromagnetic wave is given by By=2×10−7sin(0.5×103x+1.5×1011t)T It is propagating in space. What is the frequency of this electromagnetic waves?

From the wave equation, clearly, T2=1.5×1011 or v=T1=2π1.5×1011≈2.4×1010 Hz

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Passage I The magnetic field in a plane electromagnetic wave i

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Passage I The magnetic field in a plane electromagnetic wave is given by $B_{y} = 2 \times 1 0^{- 7} sin (0.5 \times 1 0^{3} x + 1.5 \times 1 0^{11} t) T$ It is propagating in space. What is the frequency of this electromagnetic waves?

5.0 \times 1 0^{10} Hz

2.4 \times 1 0^{10} Hz

1.9 \times 1 0^{10} Hz

1.3 \times 1 0^{10} Hz

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Master Resource Book in JEE Main Physics (Arihant)

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Passage I The magnetic field in a plane electromagnetic wave is given by

B_{y} = 2 \times 1 0^{- 7} sin (0.5 \times 1 0^{3} x + 1.5 \times 1 0^{11} t) T

It is propagating in space. What is the frequency of this electromagnetic waves?

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14 mins ago

Text solutionVerified

From the wave equation, clearly,

\frac{2}{T} = 1.5 \times 1 0^{11}

v = \frac{1}{T} = \frac{1.5 \times 1 0 ^{11}}{2 π} \approx 2.4 \times 1 0^{10} Hz

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Question Text	Passage I The magnetic field in a plane electromagnetic wave is given by $B_{y} = 2 \times 1 0^{- 7} sin (0.5 \times 1 0^{3} x + 1.5 \times 1 0^{11} t) T$ It is propagating in space. What is the frequency of this electromagnetic waves?
Topic	Electromagnetic Waves
Subject	Physics
Class	Class 12
Answer Type	Text solution:1
Upvotes	133

Passage I The magnetic field in a plane electromagnetic wave is given by $B_{y} = 2 \times 1 0^{- 7} sin (0.5 \times 1 0^{3} x + 1.5 \times 1 0^{11} t) T$ It is propagating in space. What is the frequency of this electromagnetic waves?

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Passage I The magnetic field in a plane electromagnetic wave is given by By​=2×10−7sin(0.5×103x+1.5×1011t)T It is propagating in space. What is the frequency of this electromagnetic waves?

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Passage I The magnetic field in a plane electromagnetic wave is given by $B_{y} = 2 \times 1 0^{- 7} sin (0.5 \times 1 0^{3} x + 1.5 \times 1 0^{11} t) T$ It is propagating in space. What is the frequency of this electromagnetic waves?