The magnifying glass is only used in the Forgery Detection class on Counterfeit Island.
take the magnifying glass to the bottom right the middle ones signature is diffrent to the others
Look at the signatures on the three paintings. One of them is not the same.
Use the magnifying glass to look at the lower right of every painting, where the signatures are.
In the forgery training, use the magnifying glass to look at the signatures on the three paintings. One is different.
Look for the one with more detail.
You don't need to answer that. Just pass the magnifying glass over the signatures on all three paintings. One is different, but just looking at them satisfies the test.
You take the magnifying glass and look at all of the gems carefully and there will be one with a marking on it. Put the magnifying glass down and pick it up. Go back to the island and get the medallion.
In the forgery detection experiments, the fake painting of the three is the one with a different signature. You do not have to determine which one it is : just use the magnifying glass to examine the lower right corner of each painting.
Have you ever wondered how a magnifying glass is constructed? A magnifying glass is constructed by using a convex lens to curve and magnify objects. A magnifying glass is also constructed out of glass.
To pass the 2nd forgery test, look at the lower right side of all three paintings. You will see that one of the three signatures is different from the other two. (You do not have to pick which one.) (see related question)
The magnifying glass is in the lower right corner when you examine the diamonds at the end of the Diamond Mines. One of them is the White Jewel. Look for the symbol marked on it. It should be the third one in from the bottom left.
A magnifying glass is convex, meaning that the lens curves outward.