question

[tyflem]

The observer is position so that the far edge of the bottom of the empty glass is just visible. When the glass is filled to the top with water, the center of the bottom of the glass is just visible to the observer. Find the heigh of the glass, given that its width is 6.2cm?
I can't figure this one out can somebody help?

[Ana_Albania]

I really want to help!
For this problem there is a costante that you want to know, I don't know the right word in English...It's a constante for the water...

I'm sorry i can't help you! Just try to ask your instructor!