Subject: How much light does chlorophyl absorb? How much other materials?

What is the percentage of the light absorbed by chlorophyll (just absorbed), 
what is the efficency of chlorophyll. How do other materials compare to 
chlorophyll (for ex. white t-shirt vs. black t-shirt vs. household black paint 
vs. chlorophyll). What happens if the entire spectrum of light is absorbed by 
an object (or mainly, like in the case of trees where just the green light is 
reflected and the rest is absorbed), how does one see or visualize a person 
standing behind that object that absorbs the light? Would a 100% absorbtion of 
the entire visible spectrum make you invisible? THX for any answers and help.

Re: How much light does chlorophyl absorb? How much other materials?