If we place an opaque object between a point source of light and a screen,a shadow of the obstacle is formed on the screen,then we will observe?

Question

anonymous · Answer

No light reaches within the geometrical shadow of the obstacle at the screen?

anonymous · Answer

2: Outside the geometrical shadow the screen is uniformly illuminated
3:Light reaches within the geometrical shadow of the obstacle at the screen

anonymous · Answer

@electrokid

anonymous · Answer

|dw:1382894155701:dw|

anonymous · Answer

unless they have taught you about "diffraction" then you have the answer from the diagram.

anonymous · Answer

2 and 3 seems correct to me now!

anonymous · Answer

no. the other way. the region where no light reaches is called as "shadow"

anonymous · Answer

So 1? No light reaches?

anonymous · Answer

confused :(