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If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
Options
(a) 180ﾟ
(b) 90ﾟ
(c) 45ﾟ
(d) 0ﾟ
Correct Answer:
90ﾟ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Difficulty Level: Easy
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Assertion(A) :The change in kinetic energy of a particle is equal to the work done
- The value of coefficient of volume expansion of glycerin is 5 x 10⁻⁴ k⁻¹.
- An electron is
- In a region, the potential is represented by V(x,y,z)=6x-8xy-8y+6yz, where V
- If the rise in height of capillary of two tubes is 6.6 cm and 2.2 cm
Difficulty Level: Easy (1008)
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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a.b=|a||b|cos(x)
(4,4,-4) (3,1,4) = 4×3+4×1+(-4)x4
= 12+4-16
=0