Wave MC

2007-03-13 12:52 am
1st statement:
Images of objects inside a railway carriage can be seen in its windows at night, but not in a sunny afternoon.

2nd statement:
Glass panes reflect part of the light incident on them.


請解釋these 2 statements and ans~
中英都可~
thx~

Ans: B
更新1:

how about the correct reason?

回答 (1)

2007-03-13 3:31 am
✔ 最佳答案
夜晚係卡車入面既影像比外面0既環境光,
IMAGE發出光線, so夜晚係出面睇到.
晏就外面既光線比卡車入面個image發出黎既更強,
強光進入卡車, 而唔係卡車入面既光線射返出黎.
so晏就見唔到卡車入面既image.

第2個statement都係right既,
(因為玻璃係會反射部分入黎既光線既, 係臨界角既關係 critical angle)
但佢解釋唔到點解夜晚睇到但晏就睇唔到個image.
所以係B


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