题干

如图在“探究平面镜成像特点”的实验中,小芳她们小组用蜡烛,玻璃板,刻度尺等器材进行实验.请回答下列问题:

(1)用玻璃板代替平面镜的目的是:玻璃能____ ,便于确定像的____ .

(2)实验中她发现当沿桌面移动未点燃的蜡烛B时,始终不能使蜡烛B与已点燃的蜡烛A的像重合,他在实验中可能存在的问题是____ .

(3)实验中,仔细观察像的位置,会看到平面镜中有两个像,请分析产生两个像的原因____ .

 

上一题 下一题 0.0难度 选择题 更新时间:2013-04-16 08:43:12

答案(点此获取答案解析)

透光,位置,玻璃板与桌面不垂直,玻璃板有两个反射面

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