Answer the given questions comprehensively.~ What is light?~ How does light travel?~ What evidence can you show that light travels in a straight line?~ What are the different wave properties of light? Differentiate each.
[tex]<marquee>here is your answer</marquee>[/tex]light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. it is usually refers to the spectrum that is visible to the human eye and is responsible for the sense of sight.light is move in a straight line.if we reflect light with the help of mirror it make 90 degree angle that direction of light it shows that the light moves in a straight line. different way properties of light is polarization. polarization is the wave property of light. and there are three measurable properties of wave motion of light that is amplitude wavelength and frequency. [tex]<marquee>hope its helpful</marquee>[/tex]
The distance from Earth to the star Epsilon Eridani is about 10.5 light years. Which of the following statements is true?
A.
It takes a ray of light 21.0 years to travel from Epsilon Eridani to Earth.
B.
It would take a modern space vehicle 21.0 years to reach Epsilon Eridani.
C.
It would take a modern space vehicle 10.5 years to reach Epsilon Eridani.
D.
It takes a ray of light 10.5 years to travel from Earth to Epsilon Eridani.