The magnetic field in a plane electromagnetic wave is given by =2×10−7sin(0.5×103x+1.5×1011t). This electromagnetic wave is
Visible light
Infrared
Microwave
Radiowave
A
Visible light
B
Infrared
C
Radiowave
D
Microwave
Open in App
Solution
Verified by Toppr
The magnetic field in a plane of electromagnetic wave is given by
B=2×10−7sin(0.5×103x+1.5×1011t)
from the above, K=0.5×103= propagation constant
K=2πλ where, λ= wavelength of wave
λ=2×3.140.3×103
λ=1.256×10−2m
λ=1.256cm
The electromagnetic wave is Microwave radiation in spectrum.
Was this answer helpful?
35
Similar Questions
Q1
The magnetic field in a plane electromagnetic wave is given by =2×10−7sin(0.5×103x+1.5×1011t). This electromagnetic wave is
View Solution
Q2
The magnetic field in a plane EM wave is given by By=2×10−7sin(0.5×103x+1.5×1011t)T. What is the expression for the electric field ?
View Solution
Q3
For a plane electromagnetic wave, the magnetic field at a point x and time t is →B(x,t)=[1.2×10−7sin(0.5×103x+1.5×1011t)^k]T
The instantaneous electric field →E corresponding to →B is (speed of light c=3×108ms−1)
View Solution
Q4
If the magnetic field of an electromagnetic wave is given as By=2×10−7sin(103x+1.5×1012t) tesla, the wavelength of the electromagnetic wave is
View Solution
Q5
The magnetic field in plane electromagnetic wave given by