[填空题]
Two plane mirrors fa e*lyoz82):iy 78cc+)/so oru f2 jwoo8lqtdrce eachr7j8hz0a)+todltk8na 9 ) jse other 2.0 m apart as in (Fig. Below). You stand 1.5 m away from one of tzla )t 9 a+j)kh n78te0orj8dshese mirrors and look into it. You will see multiple images of yourself.
(a) How far away from you are the first three images in the mirror in front of you?
$d_1$ = m
$d_2$ = m
$d_3$ = m
(b) Are these first three images facing toward you or away from you?
the first image is facing ;
the second image is facing ;
the third image is facing .
参考答案: 空格1: 3±2%
空格2: 4±2%
空格3: 7±2%
空格4: toward you
空格5: away from you
空格6: toward you