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一、发现问题上物理课时,老师讲到光的折射现象(一束光从空气中斜着射入水中,发生折射现象)时,因为没有实物可供我们观察,我们只能想象,也没有具体的偏转角
First, when we discovered the physics class on the subject, the teacher talked about the phenomenon of refraction of light (a beam of light was obliquely injected into the water from the air and refracted). Since there was no physical evidence for our observation, we could only imagine and did not specify The deflection angle