Physics Area: Optics
Topics Covered:
Student Page(s): S - Ranking1
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Object A: Initialize | Object B: Initialize |
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Object C: Initialize | Object D: Initialize |
Four regions are hidden by a curtain. You can drag the source of light to any location and adjust the beam width.
a) What is behind each curtain?
A - Remove/Replace Curtain B - Remove/Replace Curtain C - Remove/Replace Curtain D - Remove/Replace Curtain
b) Rank the objects in terms of their focal lengths from smallest to greatest.
A<C<B<D