As we are able see outside from our window glass since it shows refraction in day but what happens in night as in night we are unable to see out since it shows reflection in night and sometimes it shows both the phenomenon simultaneously. So my question is this that

Which phenomenon does a window glass shows. Does it shows REFLECTION or shows REFRACTION or BOTH?

  • $\begingroup$ For what downvote $\endgroup$ – Harsh Kumar Jan 18 '17 at 16:56
  • $\begingroup$ Reflection and refraction aren't exclusive. Some angles and light conditions make it easier to see reflection so that the window looks reflective during certain times or from certain angles. Realistically most light is refracting through, and a bit is reflected. That has to do with the surface properties. $\endgroup$ – JMac Jan 18 '17 at 16:59
  • $\begingroup$ Look at this illustration cdn.naturalpigments.com/education/images/… $\endgroup$ – AHB Jan 18 '17 at 17:41
  • $\begingroup$ What do you think and why? $\endgroup$ – sammy gerbil Jan 18 '17 at 21:18
  • $\begingroup$ The phenomenon you are referring to is called partial reflection. A glass surface can reflect 0 to 16% of the light. In the daytime you can hardly notice 16% compared to the light outside. At night time even a small percentage of light would dominate. Here is a fun lecture from Richard Feynman that discusses this subject.m.youtube.com/watch?v=Sccs-XG33EU $\endgroup$ – Bill Alsept Apr 9 '17 at 17:29