Using known conditions, combining the law of refraction law, designing the optical path diagram, combining the geometric figure to solve the problem, and drawing conclusions.
Using the known conditions, combined with the law of refraction law, design the light road map, combined with geometry to solve the problem, draw conclusions.
Using the known conditions, combining with the law of refraction, designing the light path map, combining with the geometric figure to solve the problem, and draw a conclusion.<br>