Unit: waves
Year: 1993 Question#: 48
Question: The box most likely contains a
(1 ) prism
(2 ) converging lens
(3 ) double slit
(4 ) polarizer
What is this question really asking?
Explanation by: Danny A
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Answer 1
prism
INCORRECT
A prism would cause the rays of light to bend but has no way of removing light waves based on their orientation. return to top
Answer 2
converging lens
INCORRECT
This is wrong because a converging lens converges the light towards a focal point which is not shown in the diagram. A lense of any type has no way of removing a wave based on its orientation. return to top
Answer 3
double slit
INCORRECT
A double slit produces constructive and destructive interference which is not shown in this picture. return to top
Answer 4
polarizer
CORRECT
A polarizer is the only device available for filtering out all orientations of light waves but the one orientation that matches the orientation of the lines in the polarizer. return to top
What's this question really asking?
What does this box contain? return to top
