Quiz - Physics - Visual Reversal

[tursiops]

There is the Padi answer and the technically correct answer.

Could you explain further, or this just a generic PADI bash?

 

[scubadada]

Very interesting that only 25% got this quiz question correct. Thanks for posting under adverse conditions @Pedro Burrito. You are our Covid-19 saviour

 

[elmo]

I'm curious if "visual reversal" is a term used in physics not in the context of scuba.

 

[scubadada]

I'm curious if "visual reversal" is a term used in physics not in the context of scuba.

I don't think so, I even knew about it from the old days PADI IDC Dive Theory - The Physics of Diving

 

[tursiops]

Very interesting that only 25% got this quiz question correct. Thanks for posting under adverse conditions @Pedro Burrito. You are our Covid-19 saviour

I suspect those answering "closer" were just remembering the refraction information from their OW class, and did not know the term "visual reversal" so just ignored it.

 

[TMHeimer]

I suspect those answering "closer" were just remembering the refraction information from their OW class, and did not know the term "visual reversal" so just ignored it.

That would be my guess. You answer based on what you've read. You get it marked right, you're happy. At least that's my philosophy on tests of any kind. I also think understanding the material (of any subject) is far more important, but that has always been a separate issue for me. In Jr. High and early HS I had maybe the 2nd or 3rd highest average in the school, because I became expert at studying and answering questions by giving answers that I knew were expected. Then, around 11th grade I woke up and went into music....
That's probably why an "unclear" question really bugs me. The only really bad one I can recall here has been the old J Valve one.

 

[HKGuns]

I suspect those answering "closer" were just remembering the refraction information from their OW class, and did not know the term "visual reversal" so just ignored it.

That is exactly why I chose that answer.

 

[Couv]

D'oh!

 

[dorsal]

Could you explain further, or this just a generic PADI bash?

@tursiops it was somewhat a ding. While most of the padi test questions are well written, I’ve encountered a few over the years that could have two correct answers and we just have to remember what they are looking for. I don’t have any at hand for an example. I’ve had at least one get referred back to padi to get corrected too.

 

[Angelo Farina]

I suspect those answering "closer" were just remembering the refraction information from their OW class, and did not know the term "visual reversal" so just ignored it.

Exactly my error. Never heard of that "visual reversal" effect...