The wave function in SI units for an electromagnetic wave is given as - x-t- 10 3 sin p 3- 10 6 x-9- 10 14 t - The speed of the wave is-

The correct option is A 3× 10 ^ 8 The speed of the wave is given as v=ωk=9× 10^143× 10^6=3× 10^8 ...

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Standard XII

Physics

Wave Equation of EM Waves

The wave func...

Question

The wave function (in SI units) for an electromagnetic wave is given as
$ψ (x, t) = 10^{3} sin p (3 \times 10^{6} x - 9 \times 10^{14} t)$ . The speed of the wave is:

9 \times 10^{14}

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3 \times 10^{8}

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3 \times 10^{6}

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3 \times 10^{7}

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Solution

The correct option is A $3 \times 10^{8}$
The speed of the wave is given as $v = \frac{ω}{k} = \frac{9 \times 10^{14}}{3 \times 10^{6}} = 3 \times 10^{8}$

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Similar questions

Q. A plane electromagnetic wave propagating in

x (-)

direction as a wave function (in SI units) is given as

Φ (x, t) = 10^{3} sin π (3 \times 10^{6} x - 9 \times 10^{14} t)

The speed of the wave is

Q. An electromagnetic wave in transparent medium is given by

E_{x} (y, t) = E_{o x} s i n 2 π

[\frac{y}{5 \times 10^{- 7}} - 3 \times 10^{14} t]

in SI units. Then what is the refractive index of the medium?

Q. The electric component of an electromagnetic wave (in SI units) are given by

E_{x} = 10^{2} s i n [π (9 \times 10^{14} t - 3 \times 10^{6} z)]

E_{y} = 0, E_{z} = 0

find the inensity of this radiation.

Q. A

27

mW laser beam has a cross-sectional area of

10

m m^{2}

. The magnitude of the maximum electric field in this electromagnetic wave is given by?[Given permittivity of space

\in_{0} = 9 \times 10^{- 12}

SI units, Speed of light

c = 3 \times 10^{8}

m/s]

An electromagnetic wave travelling through a transparent medium is given by $E_{x} (y, t) = E_{o x} s i n 2 π [\frac{y}{5 \times 10^{- 7}} - 4 \times 10^{14} t]$ in SI units. Then what is the refractive index of the medium?

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The wave function (in SI units) for an electromagnetic wave is given as ψ(x,t)=103sinp(3×106x−9×1014t). The speed of the wave is:

The correct option is A 3×108The speed of the wave is given as v=ωk=9×10143×106=3×108

The wave function (in SI units) for an electromagnetic wave is given as
$ψ (x, t) = 10^{3} sin p (3 \times 10^{6} x - 9 \times 10^{14} t)$ . The speed of the wave is:

The correct option is A $3 \times 10^{8}$
The speed of the wave is given as $v = \frac{ω}{k} = \frac{9 \times 10^{14}}{3 \times 10^{6}} = 3 \times 10^{8}$