Physics, 10.12.2021 20:10 tiwaribianca475

A small EM-wave source (i. e. a small collection of charges which is vibrating in simple harmonic motion having a known frequency) radiates an electromagnetic wave into the vacuum of space itself. Of course, the electromagnetic wave consists of blocks of magnetic and electric fields which are leaving the vibrating source; these blocks of electric and magnetic fields leave the source in all possible directions (Le nothing has been done by the designers of the source to form the wave into a tight beam). As the wave moves away from the source determine what happens to each of the following: (a) the frequency of the electromagnetic wave
i. increases
ii. decreases
iii. remains constant
(b) the intensity of the electromagnetic wave increase decreases remains constant
Give your reasoning as briefly as possible.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 20:30

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

Answers: 2

Answer

Physics, 21.06.2019 21:50

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Answers: 2

Answer

Physics, 22.06.2019 05:30

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

Answers: 1

Answer

Physics, 22.06.2019 12:00

If the new moon happens on january 15th, what shape will it be on february 6th?

Answers: 1

Answer

You know the right answer?

A small EM-wave source (i. e. a small collection of charges which is vibrating in simple harmonic mo...