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Physics 22 Online
OpenStudy (anonymous):

A material transmits some of the light that reaches it, and objects behind the material appear blurred. What type of material is it? A.transparent B.opaque C.translucent D.pigmented @roadjester

OpenStudy (anonymous):

@roadjester

OpenStudy (roadjester):

transmission of light has to do with transmission gratings and diffraction of light which I'm not too familiar with...

OpenStudy (roadjester):

opaque does not let ANY light through at all...

OpenStudy (anonymous):

YEP THAT'S WHAT I THOUGHT, BUT THE ANSWER IS C...

OpenStudy (roadjester):

I would say C

OpenStudy (anonymous):

HI GOT ANOTHER QUESTION : Many ocean-dwelling animals can use sound waves to communicate with other animals and locate food and obstacles over longer distances than can land-dwelling animals. How is this possible? A.Sound waves travel faster in air than in water. B.Sound waves travel farther in water than in air. C.Ocean-dwelling animals produce louder sound waves. D.Oceans have less pollution than air does.

OpenStudy (anonymous):

@roadjester

OpenStudy (roadjester):

Sound travels faster in water.

OpenStudy (anonymous):

DO YOU MEAN A OR B?

OpenStudy (anonymous):

JUST TRYING TO MAKE SURE... :)

OpenStudy (roadjester):

Your first question C Second I THINK B

OpenStudy (anonymous):

THANK YOU SO MUCH @roadjester :)

OpenStudy (roadjester):

So they're both correct?

OpenStudy (anonymous):

YES THEY ARE :)

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