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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
(1008)
Topics: Motion in Plane
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- During an adiabatic process, the cube of the pressure is found to be inversely
- The current in a conductor varies with time t as I=2t+3t² Where I is in amperes
- Identify the paramagnetic substance
- A soap bubble oscillates with time period T, which in turn depends on the pressure
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