"Shadow" is a common light phenomenon in life. The following statements are wrong: () A. Hand shadow in shadow play-linear propagation of light B. Reflection in the lake.

A, hand shadow means that the light is blocked by the hand, thus the shadow of the hand appears on the wall. This is because light travels in a straight line. Therefore, the option statement is correct.

B. The reflection of the lake water in the water is that the light enters the human eye after being reflected on the water surface, and the water surface is equivalent to a flat mirror. This is the reflection principle of light, so the option statement is correct.

C, in the process of film screening, the projector is used to show the image of the photo, and the convex lens is used to form the inverted enlarged real image, so the option statement is correct.

D, the principle of photography is the same as photography. When 2f < u < f, the inverted and reduced real image belongs to the refraction principle of light, so the option expression is wrong.

So choose D.