Misc 16 (MCQ) - Chapter 10 Class 12 Vector Algebra
Last updated at December 16, 2024 by Teachoo
Miscellaneous
Misc 1
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Misc 16 If Īø is the angle between two vectors š ā and š ā , then š ā ā š ā ā„ 0 only when (A) 0 < š< š/2 (B) 0 ā¤ š ā¤š/2 (C) 0 < š < Ļ (D) 0 ā¤š ā¤ š Given, š ā. š ā ā„ 0 |š ā | |š ā | cos Īø ā„ 0 Assuming |š ā | ā 0 and |š ā | ā 0 cos Īø ā„ 0/|š ā ||š ā | cos Īø ā„ 0 ā“ 0 ā¤ Īø ā¤ š/2 So, (B) is the correct answer
