Question 35
MSQ
2019
Medium
MSQ
+3.00 marks · -0.19 negative
A set of two frames with square openings when perfectly overlapped with each other allow light though it in certain patterns. Shown below are four sets of such frames. These frames are either hinged (A and B) or pivoted (C and D) to each other. Assuming that the red frames are fixed and the blue frames are allowed to move, which option(s) will allow light to pass through as in the pattern shown on the left? [Figure: see page 15 of source PDF]
Select all that apply.
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