Friday, November 16, 2018

electromagnetism - Minimum frequency of an electromagnetic wave



Is it possible to create an electromagnetic wave of near zero frequency?


An electromagnetic wave carries energy. If we can make the frequency of an EM wave vanishingly small and make it practicality DC, will it also carry energy? I don't think it is possible. Hence there should be some fundamental limit on the minimum frequency of an EM wave.


Is there any such thing?




-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...

  • IQ test sample patterns
    I was solving the sample problems for my school's IQ society and there are some I don't get. Since all I get is a final score, I wan...
  • homework and exercises - Parallel or series connection?
    Are C1, C2 and C3 connected in parallel, or C2, C3 in parallel and C1 in series with C23? Btw it appeared as a question in the basic physics...
  • A real star riddle
    500 are at my end, 500 are at my start, but at my heart there are only 5. The first letter and the first number make me complete: Some consi...