A) \[(\alpha -\beta )\]
B) \[2(\alpha -\beta )\]
C) \[(\alpha -\beta )/2\]
D) \[(\beta -\alpha )\]
Correct Answer: B
Solution :
From the following ray diagram it is clear that \[\delta =(\alpha -\beta )+(\alpha -\beta )\]\[=2(\alpha -\beta )\]You need to login to perform this action.
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