Aseries of polarizers are each placed at a 7.0 ∘ interval from the previous polarizer. unpolarized light is incident on this series of polarizers. part a how many polarizers does the light have to go through before it is below 18 of its original intensity?

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.