0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. the amplitude of its electric field

A
increase
B
None
C
decrease
D
stay constant
Solution
Verified by Toppr

Correct option is B. decrease
The same amount of energy passes through concentric spheres of increasing area as the wave travels outward from its source, so the amplitude and the intensity, which is proportional to the square of the amplitude, decrease.

Was this answer helpful?
1
Similar Questions
Q1
A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. the amplitude of its electric field
View Solution
Q2
A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions.As the wave moves, does its frequency.
View Solution
Q3
A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions.its speed
View Solution
Q4
A small source radiates an electromagnetic wave with a single frequency into vacuum, equally in all directions. As the wave moves, its wavelength:
View Solution
Q5
A plane electromagnetic wave with a single frequency moves in vacuum in the positive $$x$$ direction. Its amplitude is uniform over the $$yz$$ plane. the amplitude of its magnetic field.
View Solution