Question

(c ≈ 3.00 x 108 m/s;   εo ≈ 8.85 x 10–12 N-m2/C2;   μo = 4π x...

  1. (c ≈ 3.00 x 108 m/s;   εo ≈ 8.85 x 10–12 N-m2/C2;   μo = 4π x 10–7 T-m/A)

(a) A plane electromagnetic wave of wavelength 2.00 m travels in vacuum in the negative x-direction with its magnetic field vector B, of amplitude 1.20 μT, directed along the positive y-axis.

            (i)   What is the frequency, f, of the wave? [2]

            (ii) What are the direction and the amplitude, Eo, of the electric field vector E associated with the wave ? [4]

            (iii) If  B =  Bocos ( kx +  ωt ) in SI units , what are the values of k and ω? [4]

            (iv) If the wave falls perpendicularly on to a perfectly reflecting sheet of area 1.60 m2, at what rate is momentum delivered to the sheet, and what is the radiation pressure on it ? [6]

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The electric field of an electromagnetic wave in a vacuum is Ey=(18.0 V/m)cos((4.18 ×10^8)x−ωt), where x...
The electric field of an electromagnetic wave in a vacuum is Ey=(18.0 V/m)cos((4.18 ×10^8)x−ωt), where x is in m and t is in s. What is the wavelength, frequency, and magnetic field amplitude of the wave?
The magnetic field of an electromagnetic wave in a vacuum is Bz =(3.8μT)sin((1.15×10^7)x−ωt), where x is...
The magnetic field of an electromagnetic wave in a vacuum is Bz =(3.8μT)sin((1.15×10^7)x−ωt), where x is in m and t is in s What is the wavelength, frequency, and electric field amplitude of the wave?
a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 48.0 m...
a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 48.0 m and the electric field vibrates in the xy plane with an amplitude of 20.0 V/m. (a) Calculate the frequency of the wave.__________ MHz (b) Calculate the magnetic field B when the electric field has its maximum value in the negative y direction. magnitude __________nT (c) Write an expression for B with the correct unit vector, with numerical values for Bmax, k, and ω, and...
Bookmark The electric field of an electromagnetic wave in a vacuum is Ey= (24V/m)sin((5.28 x 108)x-ωt),...
Bookmark The electric field of an electromagnetic wave in a vacuum is Ey= (24V/m)sin((5.28 x 108)x-ωt), where x is in m and t is in s. Part A What is the wave's wavelength? Express your answer using three significant figures. λ =__________nm Part B What is the wave's frequency? Express your answer using three significant figures. f = __________Hz Part C What is the wave's magnetic field amplitude? Express your answer using two significant figures. B = __________T
A plane electromagnetic wave, with wavelength 3.3 m, travels in vacuum in the positive direction of...
A plane electromagnetic wave, with wavelength 3.3 m, travels in vacuum in the positive direction of an x axis. The electric field, of amplitude 130 V/m, oscillates parallel to the y axis. (a) What is the frequency of the wave?   Hz (b) What is the angular frequency of the wave? rad/s (c) What is the angular number of the wave? rad/m (d) What is the amplitude of the magnetic field component? T (e) Parallel to which axis does the magnetic...
A plane electromagnetic wave, with wavelength 4.0 m, travels in vacuum in the positive direction of...
A plane electromagnetic wave, with wavelength 4.0 m, travels in vacuum in the positive direction of an x axis. The electric field, of amplitude 270 V/m, oscillates parallel to the y axis. What are the (a) frequency, (b) angular frequency, and (c) angular wave number of the wave? (d) What is the amplitude of the magnetic field component? (e) Parallel to which axis does the magnetic field oscillate? (f) What is the time-averaged rate of energy flow associated with this...
A plane electromagnetic wave, with wavelength 2.5 m, travels in vacuum in the positive direction of...
A plane electromagnetic wave, with wavelength 2.5 m, travels in vacuum in the positive direction of an x axis. The electric field, of amplitude 270 V/m, oscillates parallel to the y axis. What are the (a) frequency, (b) angular frequency, and (c) angular wave number of the wave? (d) What is the amplitude of the magnetic field component? (e) Parallel to which axis does the magnetic field oscillate? (f) What is the time-averaged rate of energy flow associated with this...
A plane electromagnetic wave, with wavelength 3.9 m, travels in vacuum in the positive direction of...
A plane electromagnetic wave, with wavelength 3.9 m, travels in vacuum in the positive direction of an x axis. The electric field, of amplitude 360 V/m, oscillates parallel to the y axis. What are the (a) frequency, (b) angular frequency, and (c) angular wave number of the wave? (d) What is the amplitude of the magnetic field component? (e) Parallel to which axis does the magnetic field oscillate? (f) What is the time-averaged rate of energy flow associated with this...
A plane electromagnetic wave varies sinusoidally at 98.2 MHz as it travels through vacuum along the...
A plane electromagnetic wave varies sinusoidally at 98.2 MHz as it travels through vacuum along the positive x direction. The peak value of the electric field is 2.10 mV/m, and it is directed along the positive y direction. (a) Find the wavelength. m (b) Find the period. ns (c) Find the maximum value of the magnetic field. pT (d) Write expressions in SI units for the space and time variations of the electric field. (x is in meters, and t...
Constant Table: e0 =8.85´10-12C2×N--1×m-2 ; R=8.315J-mol-1×K-1; m0= 4π´10-7N×A-2; h = 6.63´10-34J×s; e = 1.602´10-19C; G=6.67´10-11N×m2-kg-2; me=9.11´10-31kg;...
Constant Table: e0 =8.85´10-12C2×N--1×m-2 ; R=8.315J-mol-1×K-1; m0= 4π´10-7N×A-2; h = 6.63´10-34J×s; e = 1.602´10-19C; G=6.67´10-11N×m2-kg-2; me=9.11´10-31kg; g=9.8 m/s2; (2) When a light beam of wavelength 620 nm is incident on a photodiode of 50% quantum efficiency, the photocurrent generated is 2 μA. What is the incident optical power? (A) 4 μW (B) 3 μW (C) 1 μW (D) 2 μW