Traditional Culture Encyclopedia - Photography and portraiture - (20 13? Wu Zhong District Simulation) Xiaoming is a photography enthusiast. The picture shows him capturing the wonderful moment of dragonfly landing. The following statement is true (
(20 13? Wu Zhong District Simulation) Xiaoming is a photography enthusiast. The picture shows him capturing the wonderful moment of dragonfly landing. The following statement is true (
(1) The dragonfly's shadow on the ground is formed by the straight-line propagation of light, so option A is correct and option B is incorrect;
(2) Dragonflies rest on the ground and are supported by gravity. These two forces act on the dragonfly, which are equal in magnitude and opposite in direction, and act on the same straight line, belonging to a pair of balancing forces, so option C is wrong and option D is correct.
So choose ad.
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