1. timemachine2

    if X rays were combined with red light together, could the electron not get excited,

    exited in the electron. Can you tell me what would be the outcome of this light experiment. So you mix X-rays with red light, the X-rays excite the electron to a higher shell level 2, or 3. Then the red light with the shortest wavelength, when it hits the electron as the electron is in shell 2...
  2. H

    Are rays photonbeams?

    Why beyond microwaves the EM waves seems not to follow the Huygens rule but behave as directable rays? Below a wavelenght located between microwaves & infrared rays EM radiation behave rather as directable rays than waves following the Huygens rule.What else a ray is if not a particle's linear...
  3. E

    Cosmic rays: electromagnetic radiation or particles?

    Hi: In a physics textbook from 1968, a picture representing the electromagnetic spectrum, is divided into several regions: power transmission, AM radio, ..., X rays, gamma rays, cosmic rays, and the figure says: "The electromagnetic spectrum: ....... The scale ends in the vicinity of the...
  4. G

    x rays

    can someone explain the effect of increasing the filament current on the x ray spectrum?
  5. Anonymous

    Some beginner questions about sun rays, magnetism and electro-magnetism.

    Hello, I'm new to this forum, and I wonder if anyone will answer my questions. My questions are: 1: What is a sun ray ? What is it made of? 2: What is magnetism? How does it work? 3: What is electro-magnetism, and how does it work? I will be grateful for answers. Thanks a lot !
  6. H


    OK I have another mind bending question that requires a picture. I sure hope someone can help. A piece of transparent plastic (n=1.50) in air (n=1.00) is shaped like a semi-circular solid (i.e. a half-cylinder). Five light rays are incident perpendicular to the flat side of the...
  7. C

    The paths of light rays

    Hi, can someone please help me with the following? Describe the paths of light rays in a 2-dimensional media where the speed of light v is given by: (a) v = 1/y; (b) v = \sqrt y; (c) v =\frac{1}{\sqrt y} Can somebody please show me how to do this type of question? I have not learned...
  8. M

    Gamma rays used in Young double slit experiment

    Could someone please help me out with this question. I tried searching it online but I could not come up with any explanation. Question: Could the Young two-slit experiment be performed with gamma rays? If not, why not? If so, discuss differences in the experimental design compared to the...
  9. S

    UV and IR light rays

    Why do we study UV light from space instead of from the ground? also, would a piece of glass transmit infrared light? why or why not?