Talk about self-confidence in the spotlight

(1) The red light shines on the yellow coat. The yellow coat can't reflect red light, only blue light. Red light is absorbed, and no light enters the eyes of the audience. The coat seen by the audience is black.

Red light shines on the red skirt, and the red skirt reflects red light. What the audience sees is red.

(2) When the light obliquely enters the water from the air, it refracts at the water surface, and the refraction angle is smaller than the incident angle. The human eye looks at the reverse extension line of refracted light and sees the virtual image of the tree, which is above the tree.

So the diver saw that the trees on the shore were taller than they really were.

So the answer is: black, red and high.