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Grade 11IIT JEE Entrance Exam

How to solve please help ........,..,.......,...........

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Profile image of Sudhanva G V
6 Years agoGrade 11
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1 Answer

Profile image of Arun
6 Years ago
 
Dear student 
 
½ cos^2 a sin^2 @ = 1/8
4 cos^2 @ sin^2 @ = 1
 
sin^2 2@ = 1
 
2@ = 90
@ = 45 degree
 
Hence option D is corrcet.

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